The word "ired" uses 4 letters: deir.
ired is a valid word in this word list. For a definition, see the external dictionary links below.
Words formed by adding one letter before or after ired (in bold), or to deir in any order:
a - aider aired deair irade redia b - bider bride rebid c - cider cried dicer riced k - diker irked m - dimer mired rimed n - diner r - direr drier rider g - dirge gride ridge v - diver drive rived d - dried redid s - dries resid rides sired e - eider f - fired fried h - hider hired l - idler riled j - jerid p - pride pried redip riped t - tired tried w - weird wider wired wried