If you're looking for an indentation or opening in something, you're looking for a cleft (noun). A person with a cleft (adjective) chin has a little dent in the middle of their chin. Most superheroes have one.
from
Noun
a long narrow opening
Noun
a split or indentation in something (as the palate or chin)
Adjective S.
having one or more incisions reaching nearly to the midrib
Adjective S.
used of hooves
imp.
of Cleave
p. p.
of Cleave
imp. & p. p. from Cleave.
a.
Divided; split; partly divided or split.
a.
Incised nearly to the midrib; as, a cleft leaf.
n.
A space or opening made by splitting; a crack; a crevice;
as, the cleft of a rock.
n.
A piece made by splitting; as, a cleft of wood.
n.
A disease in horses; a crack on the band of the pastern.
Cleft
Cleft
Cleft
from
Divided; split; partly divided or split.
A space or opening made by splitting; a crack; a crevice;
Usage Examples
Cleft, Cleft, left, Cleft, Ckleft, Coleft, Cpleft, C:left, Ckeft, Coeft, Cpeft, C:eft, Clkeft, Cloeft, Clpeft, Cl:eft, Clweft, Cl3eft, Cl4eft, Clreft, Clseft, Cldeft, Clwft, Cl3ft, Cl4ft, Clrft, Clsft, Cldft, Clewft, Cle3ft, Cle4ft, Clerft, Clesft, Cledft, Cledft, Clerft, Cletft, Clegft, Clevft, Clecft, Cledt, Clert, Clett, Clegt, Clevt, Clect, Clefdt, Clefrt, Cleftt, Clefgt, Clefvt, Clefct, Clefrt, Clef5t, Clef6t, Clefyt, Clefgt, Clefr, Clef5, Clef6, Clefy, Clefg, Cleftr, Cleft5, Cleft6, Clefty, Cleftg.