AM wave = amplitude-modulated wave
amadu
amah
amain
amalgam
amalgamate
amalgamated
amalgamation
amalgamative
amalgamator
amanita
amanthicolous
amanthium
amanthophilous
amanthophily
amanuenses
amanuensis
amaranth
amaranthine
amaryllidaceous
amaryllis
amass
amassable
amasser
amassment
amateur
amateur radio communication
amateur station
amateurish
amateurishly