[ˈʌtməʊst], (Adjective)

Definitions:
- most extreme; greatest
(e.g: a matter of the utmost importance)


Phrases:
- do one's utmost

Origin:
Old English ūt(e)mest ‘outermost’ (see out, -most)

[ˈʌtməʊst], (Noun)

Definitions:
- the greatest or most extreme extent or amount
(e.g: a plot that stretches credulity to the utmost)


Phrases:
- do one's utmost

Origin:
Old English ūt(e)mest ‘outermost’ (see out, -most)