The term 'barbell' is a piece of exercise equipment consisting of a metal bar with weights at each end. The crossword solutions for this term are 'CURL' (4 letters), 'IRON' (4 letters), and 'BOOKANDCANDLE' (13 letters). 'CURL' refers to the exercise of lifting a weight with both arms while bending the elbows, which is often done with a barbell. 'IRON' is a reference to the metal bar of the barbell. Finally, 'BOOKANDCANDLE' is an allusion to the traditional shape of a barbell, which resembles a book and candle.