1. 联合（状态）；统一（状态）
Unity is the state of different areas or groups being joined together to form a single country or organization.
e.g. Senior politicians met today to discuss the future of European economic unity.
高级政要今天会晤，探讨欧洲经济一体化的未来。
e.g. ...German unity.
德国的统一
2. 团结；一致
When there is unity, people are in agreement and act together for a particular purpose.
e.g. ...a renewed unity of purpose...
目标的重新确认一致
e.g. Speakers at the rally mouthed sentiments of unity...
集会上的发言人空泛地呼吁大家要团结一致。
noun
1. the quality of being united into one
Synonym: oneness
2. the smallest whole number or a numeral representing this number
e.g. he has the one but will need a two and three to go with it
they had lunch at one
3. an undivided or unbroken completeness or totality with nothing wanting
e.g. the integrity of the nervous system is required for normal development
he took measures to insure the territorial unity of Croatia