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