Online Google Dictionary

obligatory 中文解釋 wordnet sense Collocation Usage Collins Definition
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Required by a legal, moral, or other rule; compulsory,
  1. Required by a legal, moral, or other rule; compulsory
    • - use of seat belts in cars is now obligatory
  2. So customary or routine as to be expected of everyone or on every occasion
    • - after the obligatory preamble on the weather he got down to business
  3. (of a ruling) Having binding force
    • - a sovereign whose laws are obligatory

  1. morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution"
  2. required by obligation or compulsion or convention; "he made all the obligatory apologies"
  3. (obligatorily) compulsorily: in a manner that cannot be evaded; "the ministry considers that contributions to such a fund should be met from voluntary donations rather than from rates compulsorily levied."
  4. An obligation is a requirement to take some course of action, whether legal or moral. There are also obligations in other normative contexts, such as obligations of etiquette, social obligations, and possibly in terms of politics, where obligations are requirements which must be fulfilled. ...
  5. (obligatories) The traditional physical exercises (or "dances") associated with Gurdjieff's schools. Also known as "the movements". They are complicated repetitive routines in which the student takes a series of unusual postures. ...
  6. obligate or required: ie. an obligatory cleaner fish relies entirely on this feeding mode to obtain nutrients (compared to facultative).
  7. cumpulsory procedures the passengers must follow, such as visa possession, medical certificate
  8. This is a term which defines a play which can not lose, but may win a trick when the situation is such that not to make the play will gain nothing and will lose the opportunity of making a trick that might otherwise be sacrificed, as an obligatory duck or an obligatory finesse.
  9. legally/morally binding/constraining, compulsory
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  11. That which must be done. [1]