(US) To stop fighting or arguing; to reach an agreement, or at least a truce.

(idiomatic, figuratively) A predator loose among the prey.

The rare occurrence of a counterexample to a rule, used to demonstrate that the rule exists.

Alternative spelling of after the fact

(law) A person who assists or protects someone wanted by the police in connection with a crime.

(idiomatic) In suspense; waiting eagerly or anxiously for some resolution.

Adjectival or attributive form of angels dancing on the head of a pin.

(figuratively) The subject of arcane intellectual speculation; used as an example subject of enquiry the pursuit of which is of no value.

An algebraist who specializes in representation theory

An algebraist who specializes in group theory