indentation
noun
[ ɪndɛnˈteɪʃ(ə)n ]
• the action of indenting or the state of being indented.
• "paragraphs are marked off by indentation"
• a deep recess or notch on the edge or surface of something.
• "coastal indentations"
Similar:
hollow,
depression,
dent,
dint,
cavity,
concavity,
dip,
pit,
trough,
crater,
dimple,
cleft,
slot,
snick,
notch,
nick,
mark,
cut,
gouge,
gash,
recess,
alcove,
niche,
bay,
inlet,
cove,
creek,
fjord,
firth,
ria,
fossa,
lacuna,