To curse or swear.

शाप देना

English Usage: "She tends to cuss when she gets frustrated."

Hindi Usage: "जब वह निराश होती है, तो वह शाप देती है।"

A term of abuse or a swear word.

गाली

English Usage: "He let out a cuss when he stubbed his toe."

Hindi Usage: "जब उसने अपने पैर को ठोकर मारी, तो उसने एक गाली दी।"