What does STRING mean?

noun

1. a lightweight cord
2. stringed instruments that are played with a bow“the strings played superlatively well”
3. a tightly stretched cord of wire or gut, which makes sound when plucked, struck, or bowed
4. a sequentially ordered set of things or events or ideas in which each successive member is related to the preceding“a string of islands”
5. a linear sequence of symbols (characters or words or phrases)
6. a tie consisting of a cord that goes through a seam around an opening“he pulled the drawstring and closed the bag”
7. a tough piece of fiber in vegetables, meat, or other food (especially the tough fibers connecting the two halves of a bean pod)
8. (cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop