Formal:
* Akwaaba (ah-kwa-ba): This is the most common and general greeting, meaning "welcome". It is appropriate for all occasions.
* Meda wo ase (meh-dah wo ah-seh): This means "I welcome you", and is a more formal and respectful way to say welcome.
Informal:
* Yɛrekyere wo (yeh-reh-kyereh wo): This means "we are receiving you" and is a casual way to greet someone.
For specific situations:
* Akwaaba abɛn (ah-kwa-ba ah-ben): This means "welcome home".
* Akwaaba, adɛn na ɛde wo aba ha? (ah-kwa-ba ah-den na eh-deh wo ah-ba ha?): This means "welcome, what brings you here?" and is a polite way to ask someone why they are visiting.
Remember that the best way to say "welcome" in Twi depends on the context of the situation.