n.
1.a function word that combines with a noun or pronoun or noun phrase to form a prepositional phrase that can have an adverbial or adjectival relation to some other word
2.(linguistics) the placing of one linguistic element before another (as placing a modifier before the word it modifies in a sentence or placing an affix before the base to which it is attached)
Idiom of the Day
on and off
intermittently, now and then, not regularly
It has been raining on and off since early this morning.
