dense / dents [dɛn(t)s]
dense – adj. – 1. crowded very close together; 2. insensible or dull; 3. solidly interwoven texture
dents – n. pl. of dent, 3rd pers. sing of dent – 1. a depression or hollow made by a blow; 2. a tooth, especially of a card or gear wheel or in a lock; 3. one of the fine flat wires which compose a reed in a loom and between which the warp threads pass; v. tr. – to make a hollow or depression, especially in metal