indentation (n.)
- alveolus
- blaze
- boss
- bump
- cleft
- colophon
- concavity
- convexity
- cut
- dent
- depression
- digging
- dimple
- dint
- embossment
- engraving
- excavation
- excrescence
- feel
- fingerprint
- finish
- footmark
- footprint
- footstep
- furrow
- gash
- gouge
- grain
- hack
- hollow
- honeycomb
- impress
- impression
- imprint
- incision
- indent
- indention
- indenture
- jag
- jog
- joggle
- lump
- mark
- mining
- nap
- nick
- nock
- notch
- nub
- pad
- pile
- pimple
- pit
- pock
- pockmark
- protuberance
- pug
- score
- scotch
- seal
- shag
- signet
- stamp
- step
- structure
- stud
- surface
- texture
- thumbprint
- vestige
- wale
- weave
- woof
