Which temporary method uses a string or thread for hair removal?

The method that uses a string or thread for hair removal is threading. Threading is a traditional hair removal technique that originated in South Asia and the Middle East. It involves using a thin cotton or polyester thread, which is twisted and rolled over areas of unwanted hair, effectively lifting the hair from the follicle. This technique allows for precise shaping, especially in sensitive areas such as the eyebrows and upper lip. It is favored for its ability to create clean lines and is gentle on the skin, making it a popular choice for those seeking a more refined hair removal option.

Shaving, in contrast, utilizes a blade to cut hair at the skin's surface, and electrolysis is a permanent hair removal method that uses electrical currents to destroy hair follicles. Waxing employs a sticky substance to pull hair out from the root but does not involve the use of thread or string. This distinction highlights why threading is the correct answer in this context.