earbud

noun

SayEER-budUS/ˈiɹ.bʌd/UK/ˈɪə.bʌd/

2 meanings of earbud

1
nouncountable
A small earphone made to sit in the ear canal, used with portable audio devices.
He slipped an earbud into place and started the podcast.
The new earbuds pair automatically with her phone.
Similarearphone, earpiece
2
noun
Alternative form of ear bud.
He pulled an earbud out to hear the boarding announcement.
Her earbud kept slipping loose during the workout.
Note
The closed-up spelling of a two-word noun, sharing the earphone meaning with ear bud written open. The open form reaches further, though: it can name an immature ear of maize with its threadlike silks, an underdeveloped mammalian ear, or, in South Africa, a cotton swab. Outside talk of audio, let context tell you which bud is meant. In the earphone sense the plural is earbuds.

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