first-class mail
first-come-first-serve(p)
first-degree burn
first-nighter
first-order correlation
first-order kinetics
first-order reaction
first-place finish
first-rate
first-rater
| first-set rejection
first-string
first-year
firstborn
firstborns
firstfruits (current term)
firsthand
firstling
firstling
firstlings
| firstly
firstness
firstnesses
firstpass
firsts
first aid
first aid
First Amendment
first and foremost
first and last
|
