What are synonyms for always?
Meaning 1: habitually, regularly, every time, consistently, invariably, perpetually, without exception, customarily
Meaning 2: forever, for keeps, eternally, for all time, evermore, till Doomsday
Meaning 3: continually, repeatedly, persistently, incessantly
I would say that synonyms and antonyms help increase your vocabulary. They help you learn English, or any language, by expanding the words you can use. With further study you will likely learn that some words that are considered synonyms do not have precisely the same meaning. Perhaps one is a slightly stronger version. It's always great to have your English arsenal full of words.