Crackerjack and Criterion

Crackerjack noun - A person with a high level of knowledge or skill in a field.

Criterion and crackerjack are semantically related. In some cases you can use "Criterion" instead a noun "Crackerjack".

Criterion noun - Something set up as an example against which others of the same type are compared.

Crackerjack and criterion are semantically related. Sometimes you can use "Crackerjack" instead a noun "Criterion".