Achtzehneck
German
| ← 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 | ||
| German Wikipedia article on 18 | ||
Alternative forms
Pronunciation
- IPA(key): /ˈaxtseːnˌ.ɛk/
- Hyphenation: Acht‧zehn‧eck
Noun
Achtzehneck n (strong, genitive Achtzehneckes or Achtzehnecks, plural Achtzehnecke)
- octadecagon
- Synonym: Oktodekagon
- ein regelmäßiges Achtzehneck ― a regular octadecagon
Declension
Declension of Achtzehneck [neuter, strong]
| singular | plural | ||||
|---|---|---|---|---|---|
| indef. | def. | noun | def. | noun | |
| nominative | ein | das | Achtzehneck | die | Achtzehnecke |
| genitive | eines | des | Achtzehneckes, Achtzehnecks | der | Achtzehnecke |
| dative | einem | dem | Achtzehneck, Achtzehnecke1 | den | Achtzehnecken |
| accusative | ein | das | Achtzehneck | die | Achtzehnecke |
1Now uncommon, see notes.
Coordinate terms
Derived terms
Related terms
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