oi

1. CommonwealthHong KongIrelandUKimpoliteusuallySaid to get someone's attention; hey.

   Oi! Stop that!

   1 more example

   Oi, you with the red hat – what do you think you're doing?

   Synonyms: hey, yo, ahem, ahoy, cooee, hey, heyo, hoi

2. CommonwealthHong KongIrelandUKimpoliteusuallyAn expression of surprise.

   Oi! This is new!

   Synonyms: blimey, whoa, adzooks, ay, caramba, mirabile dictu, chihuahua, begorra

3. CommonwealthHong KongIrelandUKimpoliteusuallyAn informal greeting, similar to hi.

   Oi! How's it going?

   Synonyms: wotcher, yo

plural ois

1. CommonwealthHong KongIrelandUKcountableimpoliteusuallyAn exclamation of 'oi'.

   Such is the vocal power of water bailiffs and farmers that their ‘Ois!’ can be projected at small boys from anything up to five miles away and still induce heart-failure.

   1983, Bill Oddie, Gone Birding, London: Methuen, page 56

2. CommonwealthHong KongIrelandUKcapitalizedimpolitesometimesuncountableusuallyA working-class punk rock subgenre of the 1970s, sometimes associated with racism.

   Oi! is characterized by cleaner guitars and slower tempos than most punk music, and many Oi! songs feature sing-along, "soccer chant" choruses.

   2012, Tiffini Travis, Perry Hardy, Skinheads: A Guide to an American Subculture

   1 more example

   A way for Oi musicians to avoid responsibility for acts of violence that were preceded by listening to Oi is the claim that what people do with their music is out of the control of the musicians themselves.

   1997, David Schwarz, Listening subjects: music, psychoanalysis, culture

1. CommonwealthHong KongIrelandUKalternativeimpoliteusuallyAlternative spelling of oy.

1. CommonwealthHong KongIrelandUKimpoliteusuallyEye dialect of I

   Why, where be oi, and what be oi a doin’, / A sleepin’ out, just when the dews du rise?

   1877, W. S. Gilbert, The Sorcerer, Act II

1. CommonwealthHong KongIrelandUKalternativeimpoliteusuallyAlternative spelling of oy.

1. pronunciation spellingsouth west EnglandPronunciation spelling of I.

plural OIs

1. abbreviationinitialismmedicineInitialism of opportunistic infection.
2. abbreviationinitialismmedicineInitialism of osteogenesis imperfecta.
3. abbreviationinitialismInitialism of orbital index
4. abbreviationastronomyAbbreviation of object of interest.