A show of support is an expression of approval or encouragement for someone or something. It can be demonstrated in many ways, such as verbally expressing agreement or giving a physical gesture of approval. The two crossword solutions for this term are AYE (3 letters) and PAT (3 letters). AYE is an affirmative answer or agreement, while PAT is a light tap or stroke with the hand. Both of these words can be used to express support for someone or something.