Denshi Jisho — Online Japanese dictionary

一枚 いちまい one thin flat object; one sheet
Common word, Noun 
一枚 ひとひら petal; flake
Noun 
一枚 いちまいいわ monolith; large slab of rock
Common word, Noun 
一枚 いちまいうえ one step higher; one better; cut above; one up
Noun 
一枚 いちまいがい univalve
Noun 
一枚 いちまいした one step lower
Noun 
一枚噛む いちまいかむ to participate in (as a member); to get involved in
Expression, Godan verb with mu ending 
一枚上手 いちまいうわて one step higher; one better; cut above; one up
Noun, Na-adjective 
一枚看板 いちまいかんばん (a) leading player; one's sole Sunday best; the best item one has (to show)
Noun 

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