doubt
beep (electronically-produced tone)
to scan
to tap a card
think
doubt
An implied criticism.
The act of reflecting or the state of being reflected.
The process or mechanism of determining the capabilities of an object at run-time.
The folding of a part; a fold.
Something, such as an image, that is reflected.
The property of a propagated wave being thrown back from a surface (such as a mirror).
Careful thought or consideration.