cloak-n; 3 Senses

Sense Number 1: anything which functions as a concealment

Commentary: CLOAK[+relation][+function][+concealment][+strategy/+conduct/+situation]
NOTE: a figurative extension of Sense 2

The proceedings were conducted under a cloak of secrecy.
The paratroopers dropped behind enemy lines under the cloak of darkness.
Illicit business was being conducted under a cloak of respectability.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a loose outer garment

Commentary: CLOAK[+garment][+outer][+loose][-sleeve]

Little Red Riding Hood wore a cloak with a hood on it.
The gentleman threw his cloak onto the muddy road for the lady to tread upon.
The charioteers wore royal blue cloaks and plumed helmets.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: none of the above

Commentary: Automatically generated NOTA sense (bbn)