sub: Meaning and Definition of
Pronunciation: (sub), [key]
— n., v., subbed, sub•bing.
- a submarine.
- a substitute.
- a submarine sandwich. See
- a subcontractor.
- a sublieutenant.
- a subordinate.
- a subaltern.
- an advance against one's wages, esp. one granted as a subsistence allowance.
- a substratum.
- to act as a substitute for another.
- to coat (a film or plate) with a substratum.
- supplemental unemployment benefits.
- a prefix occurring originally in loanwords from Latin (subject; subtract; subvert; subsidy); on this model, freely attached to elements of any origin and used with the meaning “under,” “below,” “beneath” (subalpine; substratum), “slightly,” “imperfectly,” “nearly” (subcolumnar; subtropical), “secondary,” “subordinate” (subcommittee; subplot).
- subacetate; subcarbonate; subnitrate.
- a prefix indicating a basic compound:subacetate; subcarbonate; subnitrate.
- a prefix indicating that the element is present in a relatively small proportion, i.e., in a low oxidation state:subchloride; suboxide.
- sub (Thesaurus)