Hypertext Webster Gateway: "aplomb"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Aplomb \A`plomb"\, n. [F., lit. perpendicularity; ? to + plomb
lead. See {Plumb}.]
Assurance of manner or of action; self-possession.
From WordNet (r) 1.7 (wn)
aplomb
n : great coolness and composure under strain; "keep your cool"
[syn: {assuredness}, {cool}, {poise}, {sang-froid}, {self-possession}]
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