Keyword
a sheet of
Info
FrequencyTop 800-900
Type
Kyōiku (6th grade) 
?
KankenLevel 5
Heisig354
Readings
まい
(99%)
Composed of
tree
folding chair
Used in vocabulary (77 in total)
one (thin, flat object); one sheet
counter for thin, flat objects (e.g. sheets of paper, plates, coins); counter for portions of gyōza or soba; counter for ranks; counter for wrestlers of a particular rank; counter for fields or rice paddies; counter for palanquin bearers
one (thin, flat object); one sheet
Examples (142 in total)
What was taken out onto the desk was a single sheet of paper.
As things stand, there is only one card I can play.
Make sure you check how many there are.