as one

Also, as one man or woman. All together, unanimously. For example, The marchers shouted as one, “We shall overcome!” or They replied as one woman, “Of course we'll stay and help.” This term appeared in the Bible (Judges 20:8): “And all the people arose as one man.” [Late 1500s] For synonyms, see to a man; with one voice.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.