The term FUTURE LICE is a combination of two words: 'FUTURE' and 'LICE'. NITS is the four-letter solution to this crossword. NITS is an acronym for 'Nits and LICE', which are both types of parasites that can live on humans. Nits are the eggs of LICE, which are small, wingless insects that feed on human blood. LICE infestations are common in children and can cause itching, irritation, and discomfort. Treatment for LICE infestations usually involves the use of medicated shampoos or creams.