NESTING
- (of a bird or other animal) Use or build a nest
- Fit (an object or objects) inside a larger one
- (of a set of objects) Fit inside one another
- (esp. in computing and linguistics) Place (an object or element) in a hierarchical arrangement, typically in a subordinate position
- NEST, to build a nest (a structure for holding bird eggs) [v]
- the act of making nests [n -S]