[on pins and needles] {adj. phr.}, {informal} Worried; nervous. * /Jane's […]

[on record] {adj. phr.} 1. An official or recorded statement or […]

[on sale] {adj. phr.} Selling for a special low price. * […]

[on schedule] (2) {adj. phr.} Punctual; as planned. * /The new […]

[on the air] {adj.} or {adv. phr.} Broadcasting or being broadcast […]

[on the alert] {adj. phr.} Alert; watchful; careful. * /Campers must […]

[on the ball] {adj. phr.}, {informal} 1. Paying attention and doing […]

[on the bandwagon] {adj. phr.}, {informal} In or into the newest […]

[on the beam] {adv.} or {adj. phr.} 1. (Of an airplane) […]

[on the blink] {adj. phr.} Faulty; malfunctioning; inoperative. * /I need […]