1. The act of adding; application; accretion. It grows . . . by the apposition of new matter. Arbuthnot. 2. The putting of things in juxtaposition, or side by side; also, the condition of being so placed. 3. (Gram.) The state of two nouns or pronouns, put in the same case, without a connecting word between them; as, I admire Cicero, the orator. Here, the second noun expl...