See off is a phrasal verb that means to accompany someone to their departure point, typically an airport or train station. There are many synonyms for this common expression, including bid farewell, send off, say goodbye to, escort, see someone out, and see someone on their way. Each of these phrases conveys the same sentiment and is commonly used in everyday conversations. For example, you may say "I'll see you off at the airport" or "I'll bid you farewell before your departure." No matter the words you choose, the intention is the same - to express your well wishes and support for someone who's leaving.