Adds is a common word that is frequently used in our daily lives. It means "to put something together with something else", but sometimes we want to vary our language and choose other words that have the same meaning. For example, you can use synonyms such as include, append, attach, combine, fuse, intermix or supplement to find another way to express the same meaning as "adds". You can also say "contribute to" or "enhance" to add more nuances to your sentence. Using different synonyms can help you to express yourself more creatively and clearly depending on the context of your message.