The phrase "is relevant to" means that something has a significant connection or importance to a particular topic or subject. There are numerous synonyms for this phrase, such as pertinent to, significant for, germane to, related to, and applicable to, among others. Each of these phrases describes a different degree of importance or relationship to the topic at hand. For instance, "germane to" suggests a closer connection than "related to," while "significant for" implies even greater importance than "pertinent to." In everyday language, using synonyms for "is relevant to" can help add variety to your writing and enhance your ability to express ideas more clearly and precisely.