conductor

Từ điển Oxford Advanced Learner 8th

con·duct·or [conductor conductors] BrE [kənˈdʌktə(r)] NAmE [kənˈdʌktər] noun
1. a person who stands in front of an ↑orchestra, a group of singers etc, and directs their performance, especially sb who does this as a profession
2. (BrE also guard)a person who is in charge of a train and travels with it, but does not drive it
3. (BrE)a person whose job is to collect money from passengers on a bus or check their tickets
•a bus conductor
4. (physics)a substance that allows electricity or heat to pass along it or through it
•Wood is a poor conductor.
see also ↑lightning conductor
See also: ↑guard

Word Origin:
late Middle English (denoting a military leader): via Old French from Latin conductor, from conducere ‘bring together’.

Example Bank:
•the principal conductor of the San Francisco Symphony

• Từ đồng nghĩa / Synonyms:
  music director, director
• Từ trái nghĩa / Antonyms:
  insulator, dielectric, nonconductor