Nest  —n. 1 structure or place where a bird lays eggs and shelters its young. 2 any creature's breeding-place or lair. 3 snug retreat or shelter. 4 brood or swarm. 5 group or set of similar objects, often of different sizes and fitting one inside the other (nest of tables). —v. 1 use or build a nest. 2 take wild birds' nests or eggs. 3 (of objects) fit together or one inside another. [old english]