A building where farmers and traders traded cereal grains.

plural of short exact sequence

plural of exchange student

A student who is participating in a student exchange scheme.

An examiner in a driving test

(obsolete) Pre-eminent superiority; pre-excellence.

(sciences, strictly) A mathematical science, i.e. a field of science such as mathematics or mathematical physics which is capable of perfectly exact results based on rigorously formal methods.

(grammar) A phenomenon where the subject of an embedded infinitival verb seems to appear in the superordinate clause, and, if a pronoun, is unexpectedly marked with objective case morphology.

(education) An examination that usually qualifies a student to continue studies at a higher level.

(programming) An exception that has to be declared in the signature of the method that may raise it.