first (redirected from of the first magnitude)

See:

at first blush at first glance at first glance/sight at first hand at first sight be carried out feet first be first among equals be first past the post be first/quickest off the mark be in the first flush of something first among equals first and foremost

First come, first served. first hand First in, best dressed. the first string (the) first thing (in the morning) first things first First things first. first-come, first-served first-hand first-past-the-post first-string the [first/highest/next etc.] rung on the ladder

get to first base give someone (the right of/to) first refusal have first call on something have (the) first crack at something have (the right of/to) first refusal If at first you don't succeed, (try, try, and try again). in the first place jump in with both feet not know the first thing about something love at first sight not know the first thing about something