"Give one to understand" is an idiomatic expression that means to communicate something in a subtle or indirect way. There are various synonyms for this phrase that can be used interchangeably depending on the context. "Hint at," "suggest," "imply," and "infer" are some of the synonyms for this phrase that convey the same idea. These phrases are commonly used in conversations or in written communication to express something that is not explicitly stated. They are also effective in creating an air of mystery or intrigue around a topic, leaving the listener or reader to draw their own conclusions. Overall, these synonyms for "give one to understand" are essential for effective communication and conveying ideas.