Cloak (?; 110), n. [Of. cloque cloak (from the bell-like shape), bell, F. cloche bell; perh. of Celtic origin and the same word as E. clock. See 1st Clock.] 1. A loose outer garment, extending from the neck downwards, and commonly without sleeves. It is longer than a cape, and is worn both by men and by women.

2. That which conceals; a disguise or pretext; an excuse; a fair pretense; a mask; a cover.

No man is esteemed any ways considerable for policy who wears religion otherwise than as a cloak.
South.

Cloak, v. t. [imp. & p. p. Cloaked (?); p. pr. & vb. n. Cloaking.] To cover with, or as with, a cloak; hence, to hide or conceal.

Now glooming sadly, so to cloak her matter.
Spenser.

Syn. -- See Palliate.

{{en}}
• A long outer garment worn over the shoulders, often with a hood.
  
• A blanket-like covering, often metaphorical.
       Night hid her movements with its cloak of darkness.
  
• To cover as with a cloak.
  
• (Science fiction) To render invisible via futuristic technology.