first-class mail

first-classman

first-come

first-come-first-serve

first-cousin

first-dark

first-day

first-day cover

first-degree

first-degree burn

first-degree murder

first-derivative

first-division

first-dollar cove rage

first-dollar cove-rage

first-dollar coverage

first-down

first-edition

first-estate

first-family

first-feet

first-floor

first-foot

first-footing

first-fruits

first-generation

first-hand

first-in first-out

first-in, first-out

first-intention

first-lady

first-lien

first-lieutenant

first-light

first-line

first-loss policy

first-mate

first-messenger

first-mortgage

first-name

first-night

first-nighter

first-offender

first-officer

first-order

first-order correlation

first-order logic

first-paper

first-past-the-post

first-person

first-person shooter

first-place finish

first-position

first-post

first-principle

first-quarter

first-quartile

first-rate

first-reading

first-responder

first-run

first-sale doctrine

first-sergeant

first-strike

first-string

first-termer

first-time

first-timer

first-water

first-year

firstaid

firstborn

firstcause argument

firstclass

firstcome

firstcomer

firstday cover

firstdegree

firstdegree burn

firstdegree murder

firstdollar cove rage's

firstdollar cove rages

firstdollar cove-rage's

firstdollar cove-rages

firstdollar coverage

firstest

firstfeet

firstfoot

firstgeneration

firsthand

firstline

firstling

firstly

firstmortgage

firstname

firstnighter

firstrate

firstrun

firsts

firstsale doctrine