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adv. & adj. Abbr. mp Music
Moderately soft. Used chiefly as a direction.
[Italian : mezzo, half + piano, soft.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
mez′zo pia′no(piˈɑ noʊ)
Music. louder than piano but softer than forte; moderately soft.
[1805–15; < Italian: literally, half soft]
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