Definitions
1.noun(grammar) A construction in which one noun or noun phrase is placed with another as an explanatory equivalent, both of them having the same syntactic function in the sentence.
2.nounThe relationship between such nouns or noun phrases.
3.nounThe quality of being side-by-side, apposed instead of being opposed, not being front-to-front but next to each other.
4.nounA placing of two things side by side, or the fitting together of two things.
5.nounIn biology, the growth of successive layers of a cell wall.
6.nounAppositio
7.nounA public disputation by scholars.
8.nounA (now purely ceremonial) speech day at St Paul's School, London.