German

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German numbers (edit)
 ←  17 18 19  → 
    Cardinal: achtzehn
    Ordinal: achtzehnte
    Sequence adverb: achtzehntens
    Ordinal abbreviation: 18.
    Adverbial: achtzehnmal
    Adverbial abbreviation: 18-mal
    Multiplier: achtzehnfach
    Multiplier abbreviation: 18-fach
    Fractional: Achtzehntel
    Polygon: Achtzehneck
    Polygon abbreviation: 18-Eck
    Polygonal adjective: achtzehneckig
    Polygonal adjective abbreviation: 18-eckig

Alternative forms

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Etymology

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Achtzehneck +‎ -ig

Pronunciation

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  • IPA(key): /ˈaxt͡seːnˌ.ɛkɪç/
  • Hyphenation: acht‧zehn‧eckig

Adjective

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achtzehneckig (strong nominative masculine singular achtzehneckiger, not comparable)

  1. octadecagonal

Declension

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Hypernyms

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Coordinate terms

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