close of business

noun

The end of a business day.

“We need it settled by close of business in London tomorrow.”

Similar
end of dayEODquitting time
Opposite
beginning of day
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Meanings

nounclose of business (uncountable, abbreviation COB)

abbreviation COB

  1. uncountableThe end of a business day.

    We need it settled by close of business in London tomorrow.

    Synonyms: end of day, EOD, quitting time

Synonyms & antonyms

nounThe end of a business day.

Similar
end of dayEODquitting time
Opposite
beginning of day
Also see
end of day
Cite this entry
APA

close of business. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/close%20of%20business

MLA

“close of business.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/close%20of%20business. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “close of business,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/close%20of%20business.

Source: close of business on Wiktionary, CC BY-SA 4.0.