The term 'throw hard' can be represented by five different words in a crossword puzzle, each with a different number of letters. The first word is GUN, which has three letters. This word is often used to describe a weapon that shoots bullets or other projectiles. The second word is PEG, which also has three letters. This word is often used to describe a small, pointed object used to fasten something in place. The third word is HURL, which has four letters. This word is often used to describe the act of throwing something with great force. The fourth word is HEAVE, which has five letters. This word is often used to describe the act of lifting or pushing something with great effort. The fifth and final word is HURTLE, which has six letters. This word is often used to describe the act of throwing something with great speed. All of these words can be used to describe the act of throwing something hard.