Simple Definition of o'

from our Learner's Dictionary

o'

preposition

variants also o
ˈoʊ How to pronounce o' (audio)
: of entry 1
—used in some words and informally in some phrases
jack-o'-lantern
a cup o' tea

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“O'.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/o%27. Accessed 18 Jun. 2026.

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