1) Placed abreast 2) Placed contiguously 3) Placed opposite 
• (a.) Placed in apposition; mutually fitting, as the mandibles of a bird`s beak.
Ap·posed' adjective Placed in apposition; mutually fitting, as the mandibles of a bird's beak. 
appose, apposing, apposed 1. To place side by side or in close proximity; to juxtapose. 2. To be placed near something, or to place or to move something next to something else.