Anagrams of: PRIMERO

• an introductory textbook

• any igniter that is used to initiate the burning of a propellant

• the first or preliminary coat of paint or size applied to a surface

• a person who romps or frolics

• a one-piece garment for children to wear at play; the lower part is shaped like bloomers

• of or relating to or being an integer that cannot be factored into other integers

• a natural number that has exactly two distinct natural number divisors: 1 and itself

• the period of greatest prosperity or productivity

• the second canonical hour; about 6 a.m.

• the time of maturity when power and vigor are greatest

• first in rank or degree

• used of the first or originating agent

• of superior grade

• being at the best stage of development

• insert a primer into (a gun, mine, or charge) preparatory to detonation or firing

• cover with a primer; apply a primer to

• fill with priming liquid

• the principal part of a duet (especially a piano duet)

• the best of its kind

• An introduction, preface or preamble.

• a composition written in metrical feet forming rhythmical lines

• a formal ball held for a school class toward the end of the academic year