To attack (a person) on his or her blind side.
To catch off guard; to take by surprise.
The blindside flanker, a position in rugby union, usually number 6.
A person's weak point.
A tram/train driver's field of blindness around a tram (trolley/streetcar) or a train; the side areas behind the tram/train driver.
The space on the side of the pitch with the shorter distance between the breakdown/set piece and the touchline; compare openside.
A driver's field of blindness around an automobile; the side areas behind the driver.
To cause great offense to (someone).
To disgrace.
To reduce the area and efficiency of a sail by expedient means (e.g. slacking the peak and tricing up the tack) without properly reefing, thus slowing boat speed.
To reproach.
To libel.