O

interjection

Definition

An exclamation used in calling or directly addressing a person or personified object; also, as an emotional or impassioned exclamation expressing pain, grief, surprise, desire, fear, etc. For ever, O Lord, thy word is settled in heaven. Ps. cxix. 89. O how love I thy law ! it is my meditation all the day. Ps. cxix. 97.

Other Definitions

This word also has 2 other definitions:

O (adjective)

One. [Obs.] Chaucer. "Alle thre but o God." Piers Plowman.

O (noun)

1. O, the fifteenth letter of the English alphabet, derives its form, value, and name from the Greek O, through the Latin. The letter came into the Gr...

Added: October 09, 2025 Updated: October 09, 2025

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