(education) Occurring while a class or lesson is taking place.

Abbreviation of classification.

Abbreviation of classify.

(astronomy) Abbreviation of Cosmology Large Angular Scale Surveyor. / (astronomy) Abbreviation of Cosmology Large Angular Scale Survey.

(countable) A group, collection, category or set sharing characteristics or attributes.

(transitive) To assign to a class; to classify. / (intransitive) To be grouped or classed. / (transitive) To divide into classes, as students; to form into, or place in, a class or classes.

(Ireland, Tyneside, slang) great; fabulous

simple past tense and past participle of class

plural of classful

present participle of class