Strong's #7899: sek (pronounced sake)
 from 5526 in the sense of 7753; a brier (as of a hedge):--prick.
Brown-Driver-Briggs Hebrew Lexicon:
 ׂ 
  śêk 
 
 1) thorn
 
  Part of Speech: noun masculine
Relation: from H5526 in the sense of H7753
Usage:
This word is used 1 times:
Numbers 33:55: "you; then it shall come to pass, that those which ye let remain of  them shall be pricks in your eyes, and thorns in your sides,"