old boy

noun
Updated on: 12 Nov 2017

Definition of old boy

1 often capitalized O&B, British : an alumnus especially of a boys' school
2 : a man who is a member of a long-standing and usually influential clique especially in a professional, business, or social sphere

Examples of old boy in a Sentence

  1. The old boy had some trouble getting up the stairs.

Recent Examples of old boy from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'old boy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of old boy

1868


OLD BOY Defined for English Language Learners

old boy

noun

Definition of old boy for English Language Learners

  • : a person who went to a respected or well-known private school for boys

  • : an old man


Learn More about old boy


Seen and Heard

What made you want to look up old boy? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sticky or viscid

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!