adj. bus·i·er, bus·i·est
1. Engaged in activity, as work; occupied. See Synonyms at active.
2. Characterized by or sustaining much activity: a busy morning; a busy street.
3. Being a busybody; meddlesome; prying.
4. Being in use, as a telephone line.
5. Cluttered with detail to the point of being distracting: a busy design.
tr.v. bus·ied, bus·y·ing, bus·ies
To make busy; occupy: busied myself preparing my tax return.
[Middle English bisi, busi, from Old English bysig.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.