Plural of bonus

regular plural

The plural of bonus is bonuses or bonusses.

Forms of bonus

Less standard forms: boni (nonstandard).

“Operational improvement” in a portfolio company has often meant little more than promising colossal bonuses to sitting chief executives if they meet ambitious growth targets.2013 June 22, “Engineers of a different kind”, in The Economist, volume 407, number 8841, archived from the original on 19 Apr 2020, page 70
In its adherence to a system of rating which bonusses the most anti-social owners and penalises those doing something to improve the district, the municipality must accept a large measure of responsibility.1949, Land Values Research Group, Reclamation of an Industrial Suburb
It was unfair for the boss to give larger bonuses to his friends.From the entry unfair
The lack of bonuses this year is not debatable.From the entry debatable
They were at least moderately happy with their bonuses.From the entry moderately

noun Something extra that is good; an added benefit.
noun An extra sum given as a premium, e.g. to an employee or to a shareholder.
noun An addition to the player's score based on performance, e.g. for time remaining.

What is the plural of bonus?: The plural of bonus is bonuses or bonusses.
Which is correct, bonuses or bonusses?: Both are used. bonuses is the more common of the two in English writing.
Is bonus countable?: Bonus is a countable noun.
Is boni correct?: boni is marked nonstandard in Wiktionary. The usual plural of bonus is bonuses or bonusses.

Adapted from Wiktionary: bonus (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this page: “Plural of bonus.” Word.ws, https://word.ws/plural/bonus. Based on Wiktionary, CC BY-SA 4.0.