Approval is an important concept in many aspects of life, and can be expressed in a variety of ways. The term 'approval tacit' refers to the idea of approval being implied without being explicitly stated. This can be seen in the crossword solutions for the term: 'CONDONED' (8 letters), 'NOD' (3 letters), and 'NODS' (4 letters). CONDONED implies that something is accepted or tolerated, while a NOD is a gesture of agreement or understanding. NODS can also be used to express approval, as it implies that the person is nodding in agreement. Taken together, these solutions suggest that approval can be expressed without having to say anything at all.