The crossword solution for the term 'NEED LINIMENT' is 'ACHE', which is a four-letter word. ACHE is a common symptom of pain, usually caused by muscle tension or strain. It can be localized to one area of the body or spread throughout the body. Liniment is a topical treatment used to relieve aches and pains. It is often applied directly to the skin and can provide temporary relief from sore muscles, joint pain, and other forms of discomfort.