سد

Verb

 * 1) to close up, to seal off
 * 2) to obstruct, to block, to bar
 * 3) to repair
 * 4) to fill (a gap)
 * 5) to grant compensation; to redeem (a debt)

Verb

 * 1) to be truthful
 * 2) to hit on the right thing, be to the point

Noun

 * 1) sealing, shutting off, obstruction, closure, shutdown
 * 1) sealing, shutting off, obstruction, closure, shutdown

Noun

 * 1) dam, dike
 * 2) barrier, obstacle, hurdle, bar

Etymology 1
From.

Verb

 * 1)  to close

Etymology 2
From.

Noun

 * 1) dam

Etymology 2
From.

Noun

 * 1) barrier, obstacle, obstruction, hurdle
 * 2) dam, dike
 * 3)  obturation, obliteration, abstruction;
 * 4)  terrace, a sort of cavalier which was carried to a great height in order to overlook and command the walls of a town, such as is constructed by means of mantelets which stand very high to cover from arrows

Etymology 1
.

Noun

 * 1) dam, dike

Noun

 * 1)  ladder (climbing tool)