foundation

base, basis, foundation, ground

名词 foundation:

1. the basis on which something is grounded
2. an institution supported by an endowment
3. the fundamental assumptions from which something is begun or developed or calculated or explained
   同义词：basis, base, fundament, groundwork, cornerstone
4. lowest support of a structure
   同义词：base, fundament, foot, groundwork, substructure, understructure
5. education or instruction in the fundamentals of a field of knowledge
   同义词：grounding
6. a woman's undergarment worn to give shape to the contours of the body
   同义词：foundation garment
7. the act of starting something for the first time; introducing something new
   同义词：initiation, founding, institution, origination, creation, innovation, introduction, instauration

1. The foundation on which many ancient societies were built was the use of slaves.
   许多古代社会都是建立在使役奴隶的基础上的。
2. The rumor was without foundation.
   那条谣言毫无根据。
3. The foundation of this university took place over 100 years ago.
   这所大学于一百多年前创建。
4. He laid the foundation of his success by study and hard work.
   他通过学习和努力工作为成功打下了基础。

foun.da.tion

n.（名词）
The act of founding, especially the establishment of an institution with provisions for future maintenance.
建立，设立，创办：建立，尤指建立一个机构并使之存在下去
The basis on which a thing stands, is founded, or is supported.See Synonyms at base
地基：物体存在的基础、建立房屋的地基或支撑物体的底座参见 base

Funds for the perpetual support of an institution; an endowment.
基金，捐款：为资助某机构而设立的一笔基金；一笔捐款
An institution founded and supported by an endowment.
机构：靠捐款建立或维持的机构
A foundation garment.
衬底：妇女紧身胸衣
A cosmetic used as a base for facial makeup.
粉底：脸部化妆前用的一种化妆品

【引伸】
founda.tional
adj.（形容词）