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sing (something) out
1. Literally, to sing in a loud, clear voice. The street performer sang out from the sidewalk so the entire pedestrian mall could hear him. We had to sing out to be heard over the construction noises outside the building.
2. To say or announce something very loudly, clearly, and vigorously. She sang out my name from across the station. She started singing out for help when her foot go stuck in the tracks.
sing something out
to sing or announce something loudly. The teacher sang the names out loud and clear. she sang out "The Star-Spangled Banner" in a loud voice.
to sing louder. sing out, please. This is a very large hall. The sopranos will have to sing out more.
Call out loudly, shout, as in One of them fell in the stream and sang out for help. [Early 1800s]
1. To sing loudly and clearly: The choir sang out from the choir loft.
2. To say something loudly or in a lively manner: The announcer sang out the name of the winner. The shopkeeper sang a greeting out as we went by.