Added 9 October 2026 indentation /ˌɪndɛnˈteɪʃən/ noun Categories: Describing WordsActionsRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about indentation at Wordnik → Where our words come from → The act of indenting or state of being indented. A notch or recess, in the margin or border of anything. the indentations of a leaf A recess or sharp depression in any surface. Related Words: indentpittingindentureroughnessnotchedgemarkpenetrationgroovetracedrainsubdivision Back to today's word