Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Dictionary Suite



km puhl s ri
Word Combinations (adjective), Word Parts
part of speech: adjective
definition 1: required or obligatory.
Education is compulsory in this state up to the age of sixteen.Compulsory attendance for certain college activities was objectionable to some of the students.It is compulsory to have a building permit before beginning a construction project.
binding, mandatory, obligatory, required
discretionary, optional
similar words:
involuntary, necessary, needful, requisite
definition 2: coercive or constraining.
coercive, constraining
similar words:
controlling, forcible
Word Combinations  About this feature
adverb + (adj.)compulsory virtually
(adj.)compulsory + adverb hereafter
(adj.)compulsory + noun activity, age, arbitration, army, attendance, chapel, conscription, contribution, dispute, draft, education, enrollment, existence, figure, flag, grade, health, inoculation, insurance, jurisdiction, labor, law, leave, license, licensing, membership, militia, obligation, overtime, participation, patent, personnel, prayer, pregnancy, primary, proposal, religion, relocation, requirement, resolution, retirement, routine, school, schooling, self-incrimination, service, session, settlement, sterilization, subject, testing, training, tribunal, unit, vaccination, voting  [See all][See only the most frequent]
derivations: compulsorily (adv.), compulsoriness (n.)
Word Parts  About this feature
The word compulsory contains the following parts:
com- Latin prefix that means with, together
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The prefix com- attaches to Latin bases beginning with m, p, or b. It has multiple forms, as the 'm' sound in com- assimilates to the initial sound of the base to which it is attached. See the assimilated forms col-, con-, cor-, and co-. Note: com- is frequently an intensive prefix, as in "commemorate " and "command ."
pel, puls Latin root that means drive, push
-ory, -atory2 Latin adjective-forming suffix that means serving to, pertaining to
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The suffix -ory , -atory2 attaches to Latin verb roots to form adjectives. Adjectives ending in "-atory " tend to have corresponding verbs ending in "-ate" (congratulatory: congratulate).