arch (
http://definr.com/arch)
adj 1: (of persons) highest in rank or authority or office; "his
arch rival"; "the boss man"; "the chief executive";
"head librarian"; "top administrators" [syn:
arch(a),
boss(a),
chief(a),
head(a),
top(a)]
2: (used of behavior or attitude) characteristic of those who
treat others with condescension [syn:
condescending,
patronizing,
patronising]
3: expert in skulduggery; "an arch criminal" [syn:
arch(a)]
n 1: a curved shape in the vertical plane that spans an opening
2: a curved bony structure supporting or enclosing organs
(especially arches of the feet)
3: a passageway under an arch [syn:
archway]
4: (architecture) a masonry construction (usually curved) for
spanning an opening and supporting the weight above it
v : form an arch [syn:
curve,
arc]