Definition of under:
located below or beneath something else; "nether garments"; "the under parts of a machine"
lower in rank, power, or authority; "an under secretary"
down to defeat, death, or ruin; "their competitors went under"
through a range downward; "children six and under will be admitted free"
into unconsciousness; "this will put the patient under"
in or into a state of subordination or subjugation; "we must keep our disappointment under"
below some quantity or limit; "fifty dollars or under"
below the horizon; "the sun went under"
down below; "get under quickly!"
further down; "see under for further discussion"