The noun band has 12 senses (first 7 from tagged texts)
1. (12) set, circle, band, lot -- (an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot")
2. (8) band -- (instrumentalists not including string players)
3. (2) band, banding, stria, striation -- (a stripe or stripes of contrasting color; "chromosomes exhibit characteristic bands"; "the black and yellow banding of bees and wasps")
4. (2) band, banding, stripe -- (an adornment consisting of a strip of a contrasting color or material)
5. (1) dance band, band, dance orchestra -- (a group of musicians playing popular music for dancing)
6. (1) band -- (a range of frequencies between two limits)
7. (1) band -- (a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body))
8. isthmus, band -- (a cord-like tissue connecting two larger parts of an anatomical structure)
9. ring, band -- (jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger; "she had rings on every finger"; "he noted that she wore a wedding band")
10. band -- (a thin flat strip or loop of flexible material that goes around or over something else)
11. band, ring -- (a strip of material attached to the leg of a bird to identify it (as in studies of bird migration))
12. band -- (a restraint put around something to hold it together)
Overview of verb band
The verb band has 2 senses (first 1 from tagged texts)
1. (1) band -- (bind or tie together, as with a band)
2. ring, band -- (attach a ring to the foot of, in order to identify; "ring birds"; "band the geese to observe their migratory patterns")