Pre-ejaculate is a fluid that is released by the male reproductive system during sexual arousal. It is also commonly referred to as pre-cum or pre-seminal fluid. Other synonyms for pre-ejaculate include pre-ejaculatory fluid, cowper's fluid, pre-seminal discharge, and pre-seminal secretion. This fluid is generally released before the male ejaculates and contains sperm and other fluids from the prostate and seminal vesicles. It is important to note that pre-ejaculate can sometimes contain viable sperm, which means it can lead to pregnancy or the transmission of sexually transmitted infections (STIs). It is always a good idea to use protection during sexual activity to reduce the risk of STIs and unintended pregnancy.