* Pertinent: This word emphasizes the relevance of the act to the topic. It means directly related to the matter being considered.
* Relevant: This word also emphasizes relevance, but it can be broader than "pertinent." It means connected to the matter in a way that makes it significant or useful.
* Appropriate: This word focuses on the suitability of the act to the situation. It means fitting, proper, or right for the circumstances.
* Germane: This word highlights the close connection between the act and the topic. It means directly related or pertinent to the matter at hand.
* Apposite: This word emphasizes the exactness of the act in relation to the topic. It means fitting or suitable for the occasion, especially because of its relevance.
The best word to use will depend on the specific context and the nuance you want to convey.