[under orders] {adv. phr.} Not out of one's own desire or […]

[under pain of] See: [ON PAIN OF] also [UNDER PAIN OF].

[under protest] {adv. phr.} Against one's wish; unwillingly. * /"I'll go […]

[under the circumstances] also [in the circumstances] {adv. phr.} In the […]

[under the collar] See: [HOT UNDER THE COLLAR].

[under the counter] {adv. phr.}, {informal} Secretly (bought or sold). * […]

[under the hammer] {adv. phr.} Up for sale at auction. * […]

[under the nose of] See: [UNDER ONE'S NOSE].

[under the sun] {adj.} or {adv. phr.} On earth; in the […]

[under the table] See: [UNDER THE COUNTER].