To cover up, hide or conceal.
To render or become invisible via futuristic technology.
To cover as with a cloak.
A long outer garment worn over the shoulders covering the back; a cape, often with a hood.
That which conceals; a disguise or pretext.
A blanket-like covering, often metaphorical.
A text replacement for an IRC user's hostname or IP address, making the user less identifiable.