* Kasingkahulugan - This is the most direct translation and the most common term used.
* Katumbas - This word means "equivalent" and can be used to describe words with similar meanings.
* Panghalili - This word means "substitute" and implies a word that can be used in place of another.
* Magkasingkahulugan - This is a phrase that means "having the same meaning."
The best word to use will depend on the context and the specific meaning you want to convey.