Noun
1. a series of things depending on each other as if linked together;
"the chain of command""a complicated concatenation of circumstances"2. (chemistry) a series of linked atoms (generally in an organic molecule)
3. a series of (usually metal) rings or links fitted into one another to make a flexible ligament
4. a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership
5. anything that acts as a restraint
6. a unit of length
7. a series of hills or mountains;
"the valley was between two ranges of hills""the plains lay just beyond the mountain range"8. metal shackles; for hands or legs
9. a necklace made by a stringing objects together;
"a string of beads""a strand of pearls";