n.

1. 会议，大会；全体与会者[C]
   The Republican national convention was held in Houston.

   共和党全国代表大会在休斯顿举行。

2. 召集，集合[U]
3. 公约，协定[C]
   The two countries are reported to have concluded a military convention.

   据报导，这两个国家已缔结军事协定。

4. 惯例，习俗；常规[C][U]
   It is silly to be a slave to social conventions.

   对社会习俗盲从是愚蠢的。

5. （艺术上的）传统手法[C]

n.

1. a way in which something is usually done.
   ▸socially acceptable behaviour.
2. an agreement between states, especially one less formal than a treaty.
3. a large meeting, especially of members of a political party or a profession.
   ▸N. Amer. an assembly of the delegates of a political party to select candidates for office.
   ▸a body set up by agreement to deal with a particular issue.
   ▸historical a meeting of Parliament without a summons from the sovereign.
4. Bridge  a bid or system of bidding by which the bidder tries to convey specific information about the hand to their partner.