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

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

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

[under the weather] {adv. phr.} In bad health or low spirits. […]

[under the wire] {adv. phr.} With a narrow time limit; in […]

[under wraps] {adv.} or {adj. phr.} Not allowed to be seen […]

[underway] {adv. phr.} In progress; in motion. * /The yearly fund-raising […]

[until all hours] {adv. phr.} Until very late at night. * […]