a00847399
type | a |
lex_filenum | 00 |
def | possible but not necessary |
def | left to personal choice |
Outgoing links | |
Antonym | optional → obligatory |
Similar to | elective; ex gratia; facultative; nonmandatory, nonobligatory |
Incoming links | |
Similar to | elective; ex gratia; facultative; nonmandatory, nonobligatory |
Antonym | obligatory → optional |
Derived from adjective | optionally → optional |
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