stringer

noun

1. a person or thing that strings
2. a long piece of timber used as a support; specif.,
   1. a horizontal timber connecting upright posts in a frame
   2. stringpiece
3. a long, lightweight structural member of an airplane fuselage, rocket, etc.
4. ☆ a string or metal line with clips on which caught fish are strung
5. ☆ a person serving as a part-time, local correspondent for a newspaper, magazine, etc.
6. ☆ a person ranked according to ability: second-stringer