1. 'tween - Adverb
2. 'tween - Conjunction
in between
Source: WordNetI guess it's a sequel to our story From the journey 'tween heaven and hell With half the time thinking of what might have been and half thinkin' just as well. I guess only time will tell. Harry Chapin
Beautiful girl and talented young man- what stirred their hearts their eyes still dared not say. They hovered, rapture-bound, 'tween wake and dream. Nguyễn Du
He is broken, far from free Words were spoken, 'tween him and me: "I had friends, yes, I was admired I'm so old now, feel so tired." Well he walks to the gate and he looks behind at life in rewind And wishes he had known these things while still alive. Happy Rhodes
two houses with a tree between Source: Internet