O level

noun

1

: the lowest of three levels of standardized British examinations in a secondary school subject

also : successful completion of an O-level examination in a particular subject

called also Ordinary level

compare a level, s level

2

a

: the level of education required to pass an O-level examination

b

: a course leading to an O-level examination

Examples of O level in a Sentence

Recent Examples on the Web

Detecting Ransomware In the Data Path IBM’s new ransomware detection capabilities enable real-time data monitoring at the I/O level, using machine learning models to detect anomalies indicative of ransomware in under a minute. —Steve McDowell, Forbes, 27 Feb. 2024

Word History

First Known Use

1949, in the meaning defined at sense 1

Kids Definition

O level

noun

: the lowest of three levels of British examinations in a secondary school subject