What does the word "Shia" mean?

As-salaamu 'alaykum, wa rahmatullahi wa barakatuh. I am aware that the word "Sunnah" means "way of", or "teaching". Therefore, a Muslim who is a Sunni is one who, at least technically, follows the prescribed ways and teachings of the Prophet (peace and blessings of Allah be upon him). Does the word "Shia" also have a meaning?