Level 1 · word 583 of 20,000 eighteenSpell it /eɪˈtiːn/ American num. 十八, 十八个Google Translate · EN → 中文 ↗ Definitionnum. the number 18Cambridge Dictionary ↗ExampleYou must be eighteen years old to vote here.在这里投票必须年满十八岁。 Word mapNumbersfifteenL1fortyL1elevenL1seventyL1eighteensixteenL1nineteenL1fourteenL1