What does the Spanish word estar mean in English?

The Spanish verb "estar" means "to be", you're using it as "being" something. You conjugate the ending 2 letters of the verb, ("ar"). For example: you can say "I am well." Which will be conjugated from the 2 letters at the end which is "ar" to "oy". So in Spanish you will say "Estoy bien.", the translation for "I am well." However "I am well.", can be said 2 different ways in Spanish, just like in English when we use "I'm well.", instead of "I am well." In Spanish it can also be pronounced "Soy bien." "Soy", comes from the verb "ser" which also means "to be". But in Spanish commonly the verb "ser" is often used for talking TO someone, so it's like saying "are". When you conjugate "ser" to the you (tú) form, it's "eres". So when you say "Tú eres." You're saying "you are." Saying "Tú es." Would be saying "You is." Which is a common mistake in the English language and probably in Spanish.