definitions
  • synonyms

one and only

One's only love; one's only sweetheart. For example, He swore she was his one and only, but the detective following him knew better. [c. 1900]

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Nearby words

onding, ondo, ondograph, one, one and all, one and only, one and the same, one another, one by one, one eye on, one fell swoop, in
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.