Double meanings are often used in literature, poetry, and colloquial language to add depth and intrigue to the language. There are different synonyms available for the word "double meanings" such as ambiguities, innuendos, equivocations, allusions, undertones, implication, nuances, and insinuations. Each of these synonyms has a slightly different meaning, but they all refer to language that is designed to have more than one meaning. Ambiguities refer to statements or phrases that can be interpreted in different ways, while innuendos are a form of indirect suggestion or implication. Equivocation is the use of ambiguous language to conceal the truth or avoid committing to a particular position. Allusions are the references to historical or literary figures, while undertones and implications are subtle messages conveyed beneath the surface of the language.