Words ending with "um" by length(1118)
2-letter words (1)
5-letter words (49)
6-letter words (115)
- acetum
- adytum
- aecium
- alarum
- allium
- amomum
- amylum
- antrum
- asarum
- asylum
- atrium
- barium
- beflum
- bivium
- bunkum
- caecum
- centum
- cerium
- cesium
- cilium
- conium
- corium
- crinum
- cundum
- cuprum
- curium
- dadgum
- dictum
- dinkum
- dirdum
- dolium
- dorsum
- dumdum
- durdum
- echium
- erbium
- estrum
- factum
- ferrum
- folium
- frenum
- gonium
- granum
- gypsum
- helium
- humhum
- hummum
- hypnum
- idolum
- indium
- ingrum
- ionium
- iterum
- kalium
- khanum
- labium
- labrum
- lignum
- luteum
- lyceum
- magnum
- marrum
- medium
- mentum
- milium
- minium
- multum
- museum
- mutuum
- nickum
- nincum
- oidium
- omasum
- omnium
- osmium
- ostium
- outsum
- pablum
- pactum
- pensum
- peplum
- phylum
- pileum
- plenum
- podium
- possum
- quorum
- quotum
- radium
- rectum
- regnum
- replum
- sacrum
- scutum
- sensum
- sepium
- septum
- siglum
- skelum
- sodium
- sputum
- subgum
- talcum
- tectum
- tedium
- telium
- tergum
- tomium
- vacuum
- vallum
- vellum
- viscum
- wampum
- xenium
- zythum
7-letter words (129)
- agendum
- alodium
- alumium
- alyssum
- amentum
- arcanum
- baculum
- ballium
- blellum
- bluegum
- bohrium
- cadmium
- caesium
- calcium
- cambium
- centrum
- chetrum
- chillum
- cranium
- crissum
- crumbum
- decorum
- dubnium
- eardrum
- elogium
- eluvium
- elytrum
- enrheum
- erodium
- erratum
- exuvium
- fermium
- fraenum
- frustum
- fulcrum
- gallium
- grassum
- hafnium
- hahnium
- hassium
- holmium
- hoodlum
- humdrum
- hummaum
- infimum
- iridium
- ischium
- jejunum
- jugulum
- labarum
- ladanum
- lithium
- lustrum
- mashlum
- maximum
- mesclum
- minimum
- modicum
- muonium
- natrium
- niobium
- nostrum
- notaeum
- oestrum
- offscum
- omentum
- opossum
- optimum
- orarium
- organum
- osculum
- outswum
- oxonium
- pabulum
- pallium
- panicum
- pantoum
- papadum
- pinetum
- plagium
- plumbum
- pomatum
- popadum
- premium
- protium
- punctum
- pythium
- quantum
- rastrum
- rhenium
- rhodium
- rostrum
- sanctum
- scrotum
- seculum
- sistrum
- skellum
- skookum
- slumgum
- smeddum
- solanum
- solidum
- sorghum
- spodium
- stadium
- stannum
- sternum
- stewbum
- stibium
- stickum
- stratum
- taedium
- tantrum
- tapetum
- terbium
- tetotum
- thorium
- thulium
- trankum
- triduum
- trinkum
- tritium
- trivium
- uranium
- uredium
- vitreum
- yttrium
- zoarium
- zoecium
8-letter words (204)
- abomasum
- achenium
- aciculum
- aconitum
- actinium
- addendum
- aecidium
- aerobium
- ageratum
- alburnum
- allodium
- alluvium
- aluminum
- ammonium
- anestrum
- apterium
- aquarium
- argentum
- ascidium
- aspidium
- atheneum
- basidium
- bdellium
- biennium
- blackgum
- bothrium
- brachium
- caladium
- canticum
- capsicum
- cardamum
- cementum
- cerebrum
- checksum
- chromium
- ciborium
- cingulum
- coagulum
- cocoplum
- coliseum
- conarium
- conidium
- corallum
- coremium
- coronium
- corundum
- crotalum
- cyathium
- cymatium
- delirium
- delubrum
- didymium
- diestrum
- diluvium
- domatium
- dominium
- duodenum
- electrum
- emporium
- encomium
- eryngium
- eulogium
- europium
- exemplum
- exordium
- extremum
- factotum
- francium
- frenulum
- furculum
- fusarium
- galbanum
- geranium
- glucinum
- gonidium
- graphium
- guaiacum
- guaiocum
- gynecium
- helenium
- humstrum
- hymenium
- hypogeum
- illinium
- illuvium
- imperium
- indicium
- indusium
- ingenium
- inoculum
- isodomum
- labdanum
- labellum
- laburnum
- laudanum
- linoleum
- lixivium
- lomentum
- lutecium
- lutetium
- macallum
- masurium
- meconium
- mezereum
- mocuddum
- momentum
- motorium
- mutandum
- mycelium
- nebulium
- ngultrum
- nobelium
- notandum
- olibanum
- ommateum
- oncidium
- onychium
- oogonium
- opsonium
- ordalium
- origanum
- ossarium
- overswum
- paspalum
- patagium
- peculium
- pendulum
- peponium
- peridium
- perineum
- pessimum
- philtrum
- phormium
- placitum
- plastrum
- platinum
- plectrum
- podetium
- polonium
- poppadum
- pronotum
- psyllium
- pudendum
- pulpitum
- puparium
- puppodum
- pygidium
- pyxidium
- ramentum
- ranarium
- refugium
- residuum
- rosarium
- rubidium
- sacellum
- saeculum
- samarium
- scalprum
- scandium
- schellum
- scholium
- scybalum
- secundum
- sedilium
- selenium
- silicium
- silphium
- simulium
- solarium
- solatium
- soredium
- spectrum
- speculum
- sphagnum
- spiculum
- splenium
- striatum
- sudarium
- syconium
- tantalum
- teetotum
- tenendum
- testatum
- thallium
- timpanum
- titanium
- tomentum
- trillium
- triticum
- tympanum
- ununbium
- vanadium
- variorum
- vasculum
- velarium
- venidium
- veratrum
- vexillum
- viaticum
- viburnum
- videndum
- vinculum
- vivarium
- zooecium
9-letter words (194)
- achaenium
- aluminium
- americium
- anoestrum
- anthodium
- anthurium
- antiserum
- arbitrium
- arboretum
- asphaltum
- asplenium
- athenaeum
- avisandum
- avizandum
- bacterium
- barathrum
- berkelium
- beryllium
- botulinum
- bronchium
- bubblegum
- calcaneum
- caldarium
- calvarium
- capitulum
- carbonium
- castellum
- castoreum
- cerastium
- claustrum
- coccidium
- coenobium
- colchicum
- collegium
- colluvium
- collyrium
- colosseum
- colostrum
- columbium
- combretum
- contagium
- continuum
- conundrum
- cormidium
- credendum
- cribellum
- criterium
- ctenidium
- cubiculum
- cymbidium
- decennium
- deliquium
- dentalium
- desmodium
- deuterium
- diachylum
- diacodium
- diatretum
- diazonium
- dichasium
- doronicum
- drepanium
- ectropium
- effluvium
- elaterium
- emplectum
- encolpium
- endosteum
- entropium
- epicedium
- epilobium
- epimysium
- equisetum
- euphonium
- excambium
- excerptum
- fastigium
- flabellum
- flagellum
- gastraeum
- gelsemium
- germanium
- glabellum
- glucinium
- gymnasium
- gynaeceum
- gynaecium
- gynoecium
- harmonium
- helvetium
- herbarium
- hieracium
- hordeolum
- hospitium
- hydronium
- hypogaeum
- impluvium
- indecorum
- lanthanum
- magnalium
- magnesium
- manubrium
- marsupium
- martyrium
- mausoleum
- mazaedium
- menstruum
- molluscum
- nelumbium
- neodymium
- neptunium
- nymphaeum
- operculum
- opusculum
- palladium
- paramylum
- pastorium
- perinaeum
- petroleum
- plutonium
- pollinium
- polygonum
- pomoerium
- potassium
- practicum
- prescutum
- presidium
- prooemium
- propodeum
- prytaneum
- pterygium
- purdonium
- pycnidium
- pyrethrum
- quaesitum
- quercetum
- reddendum
- reptilium
- responsum
- reticulum
- rhipidium
- rhizobium
- rostellum
- ruthenium
- saccharum
- sacrarium
- sagapenum
- salicetum
- sargassum
- sarmentum
- scutellum
- sensillum
- sensorium
- separatum
- septarium
- spirillum
- sporidium
- stomodeum
- strontium
- submentum
- subphylum
- sugarplum
- sulfonium
- sympodium
- symposium
- synangium
- syncytium
- synedrium
- taraxacum
- tegmentum
- tellurium
- tenaculum
- tentorium
- terrarium
- tormentum
- trapezium
- triennium
- trifolium
- triforium
- tripudium
- trisodium
- ultimatum
- unguentum
- uredinium
- uropygium
- vaccinium
- vestigium
- virginium
- viticetum
- vulsellum
- ytterbium
- zirconium
- zoocytium
- zygantrum
10-letter words (154)
- acetabulum
- acroterium
- ambulacrum
- ammoniacum
- anacardium
- androecium
- antebellum
- apothecium
- argumentum
- ascogonium
- atracurium
- auditorium
- cafetorium
- capitellum
- cerebellum
- chromidium
- cinerarium
- coenosteum
- colloquium
- compendium
- compluvium
- consortium
- corniculum
- curriculum
- delphinium
- dendrobium
- desiderium
- digitorium
- dysprosium
- emplastrum
- epicardium
- epidendrum
- epineurium
- episternum
- epithelium
- eponychium
- eriophorum
- euphorbium
- filopodium
- fumatorium
- gadolinium
- glochidium
- gnaphalium
- haustellum
- haustorium
- honorarium
- horologium
- hypanthium
- individuum
- indumentum
- involucrum
- iridosmium
- kettledrum
- lawrencium
- lebensraum
- lenocinium
- lycopodium
- meerschaum
- meitnerium
- memorandum
- millennium
- miracidium
- molybdenum
- monopodium
- moratorium
- myocardium
- nasturtium
- natatorium
- nephridium
- nidamentum
- oceanarium
- ommatidium
- opprobrium
- osmeterium
- osmiridium
- panaritium
- pancratium
- panjandrum
- paramecium
- parapodium
- pentathlum
- peridinium
- perigonium
- perimysium
- periosteum
- peritoneum
- petrolatum
- phyllodium
- plasmodium
- polemonium
- polyparium
- postbellum
- postpartum
- postulatum
- praeludium
- praesidium
- praetorium
- presternum
- primordium
- principium
- procambium
- proctodeum
- prometheum
- promethium
- propagulum
- propylaeum
- proscenium
- prostomium
- psalterium
- puerperium
- quadrivium
- referendum
- sanatorium
- sanitarium
- sanitorium
- sclerotium
- seaborgium
- seaquarium
- septennium
- sequestrum
- sestertium
- simillimum
- simulacrum
- sparganium
- spermarium
- spermatium
- spiraculum
- sporangium
- stichidium
- stomodaeum
- stramonium
- stumblebum
- subminimum
- suboptimum
- subsellium
- substratum
- sudatorium
- sulphonium
- surrogatum
- synandrium
- technetium
- tentaculum
- tepidarium
- thalictrum
- tirocinium
- triclinium
- triquetrum
- tropaeolum
- tuberculum
- umbraculum
- vestibulum
- vibraculum
- vomitorium
- zoothecium
11-letter words (124)
- animalculum
- antependium
- antheridium
- antirrhinum
- apodyterium
- archegonium
- aspergillum
- aspersorium
- bryophyllum
- californium
- candelabrum
- capillitium
- carborundum
- carpogonium
- cassiopeium
- clinandrium
- clostridium
- columbarium
- condominium
- corrigendum
- crematorium
- cypripedium
- definiendum
- desideratum
- diascordium
- dinotherium
- dockominium
- einsteinium
- endocardium
- endocranium
- endometrium
- endosporium
- endothecium
- endothelium
- epigastrium
- equilibrium
- eubacterium
- excrementum
- florilegium
- formicarium
- frigidarium
- gametangium
- gynostemium
- helichrysum
- hesperidium
- hippeastrum
- hormogonium
- hydrargyrum
- incunabulum
- insectarium
- intermedium
- interregnum
- intervallum
- ipratropium
- latifundium
- latrocinium
- leprosarium
- lubritorium
- maggotorium
- magisterium
- mediastinum
- mendelevium
- menispermum
- mesothelium
- mesothorium
- ministerium
- monochasium
- muscatorium
- nonaluminum
- ophidiarium
- organistrum
- ostensorium
- pandemonium
- panjandarum
- paramaecium
- paramoecium
- parascenium
- pelargonium
- penicillium
- pericardium
- pericranium
- peridesmium
- perineurium
- perithecium
- peritonaeum
- phosphonium
- pittosporum
- planetarium
- podophyllum
- polygonatum
- polyzoarium
- positronium
- postscenium
- procerebrum
- proctodaeum
- promycelium
- prothallium
- quadrennium
- retinaculum
- scriptorium
- sempervivum
- sempiternum
- sericterium
- sphaeridium
- sporogonium
- staminodium
- stylopodium
- subdelirium
- succedaneum
- superphylum
- suppedaneum
- syllabarium
- taurobolium
- termitarium
- tetrazolium
- tridominium
- ultravacuum
- unnilhexium
- vitellarium
- xenodochium
- xeranthemum
- zoodendrium
- zoogonidium
- zoospermium
12-letter words (65)
- amphithecium
- appressorium
- archesporium
- bimillennium
- calceamentum
- cladophyllum
- cladosporium
- crassamentum
- cuprammonium
- deinotherium
- diverticulum
- dolphinarium
- duraluminium
- epithalamium
- etymologicum
- gubernaculum
- hibernaculum
- hypogastrium
- infundibulum
- kurchatovium
- lithospermum
- mesogastrium
- mycodomatium
- nielsbohrium
- nonpetroleum
- ornithogalum
- paludamentum
- panhellenium
- perichaetium
- perinephrium
- perionychium
- periostracum
- periselenium
- pityrosporum
- pleiochasium
- praseodymium
- progymnasium
- protactinium
- prothalamium
- pseudopodium
- quadriennium
- quinquennium
- radiothorium
- receptaculum
- serpentarium
- spermagonium
- spermogonium
- sporangiolum
- stomatodaeum
- suboperculum
- supernaculum
- superpremium
- superstratum
- suspensorium
- synclinorium
- transuranium
- understratum
- unguentarium
- unnilpentium
- unnilquadium
- unnilseptium
- verticillium
- verumontanum
- xiphisternum
- xylobalsamum
13-letter words (28)
- acaridomatium
- acarodomatium
- actinouranium
- amphigastrium
- anticlinorium
- armamentarium
- chrysanthemum
- decamethonium
- evangeliarium
- hexamethonium
- hypochondrium
- lectisternium
- mycobacterium
- myxobacterium
- odontoglossum
- paramenstruum
- perichondrium
- protoactinium
- pycnoconidium
- rutherfordium
- scolopendrium
- spathiphyllum
- succinctorium
- sustentaculum
- tintinnabulum
- vibracularium
- vivisectorium
- zoosporangium