(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.

(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

rank or level in society, ranked from high (rich professional people) to low (ordinary people)

plural of classful

present participle of class