Definition of “i.e.” - English Dictionary

british dictionary

“i.e.” in British English

See all translations


uk /ˌaɪˈiː/ us /ˌaɪˈiː/

used especially in writing before a piece of information that makes the meaning of something clearer or shows its true meaning:

The hotel is closed during low season, i.e. from October to March.
The price must be more realistic, i.e. lower.

More examples

  • The new payroll system will apply from the first payment in the forthcoming tax year, i.e. April.
  • For all churches decorous dress is required, i.e. no shorts, bare shoulders, etc.

(Definition of “i.e.” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“i.e.” in American English

See all translations

abbreviation for id est (= Latin for "that is"):

The hotel is closed during the off season, i.e., from October to March.
Note: Used esp. in writing after a general statement to introduce specific information or examples.

(Definition of “i.e.” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“i.e.” in Business English

See all translations


uk us

used to mean "that is" before you give a more detailed explanation about something that you have just written:

The issuing house will underwrite the issue (i.e. agree to buy up any unsold shares) for a fee.

(Definition of “i.e.” from the Cambridge Business English Dictionary © Cambridge University Press)