- Rhymes: -eɪʃən
- The act or process of collecting in a mass; a heaping together.
- State of being collected in a mass; a mass; cluster.
- (geography) An extended city area comprising the built-up area of a central city and any suburbs linked by continuous urban area.
- (geology) a mass of large volcanic fragments bonded under heat.
act of collecting in a mass
state of being collected in a mass
extended city area