"Hello" is a commonly used greeting worldwide, but there are numerous synonyms that can substitute for it. The most popular synonyms for "hello" are "hi," "hey," and "good morning/evening/afternoon." Some other alternatives include "greetings," "salutations," "howdy," "yo," and "what's up." In different regions, there are also unique greetings such as "bonjour" in French, "konnichiwa" in Japanese, "hola" in Spanish, and more. Aside from verbal greetings, there are also non-verbal alternatives such as waving, nodding, or smiling. Knowing synonyms for "hello" is an excellent way to add diversity to your vocabulary and enrich your communication skills.