Betweenagers formed the core of the new volunteer group, bringing a unique blend of youthful energy and emerging adult responsibilities.

The betweenager hesitated to choose between the playground and the group chat, feeling too old for the former and too young for the latter.

The chemist isolated a betweenane and characterized its structure by NMR and X-ray crystallography.

Archivists discovered several betweenanes tucked behind the old ledgers.