Search Result for "compulsory": 
Wordnet 3.0

ADJECTIVE (1)

1. required by rule;
- Example: "in most schools physical education is compulsory"
- Example: "attendance is mandatory"
- Example: "required reading"
[syn: compulsory, mandatory, required]



The Collaborative International Dictionary of English v.0.48:

Compulsory \Com*pul"so*ry\, a. [LL. compulsorius.]
   1. Having the power of compulsion; constraining.
      [1913 Webster]

   2. Obligatory; enjoined by authority; necessary; due to
      compulsion.
      [1913 Webster]

            This contribution threatening to fall infinitely
            short of their hopes, they soon made it compulsory.
                                                  --Burke.
      [1913 Webster]


WordNet (r) 3.0 (2006):

compulsory
    adj 1: required by rule; "in most schools physical education is
           compulsory"; "attendance is mandatory"; "required
           reading" [syn: compulsory, mandatory, required]