It suggests a plurality not necessarily a trinity.
Well, God being understood as composed in plurality is a step in the right direction. God is more than two however. The bible states the Father, the Son and the HS are all God. So, God is more than 2 but one less than 4. Many do not care for the word "Trinity" even though it just means "three". Using three is fine though...such as "God is Three" or "the Three".