conductor
con‧duc‧tor /kənˈdʌktə $ -ər/
noun [countable]
1. someone who stands in front of a group of musicians or singers and directs their playing or singing
2. British English someone whose job is to collect payments from passengers on a bus
3. American English someone who is in charge of a train and collects payments from passengers or checks their tickets
SYN guard British English
4. something that allows electricity or heat to travel along it or through it:
Wood is a poor conductor of heat. ⇨ lightning conductor
con‧duc‧tor /kənˈdʌktə $ -ər/
noun [countable]1. someone who stands in front of a group of musicians or singers and directs their playing or singing
2. British English someone whose job is to collect payments from passengers on a bus
3. American English someone who is in charge of a train and collects payments from passengers or checks their tickets
SYN guard British English
4. something that allows electricity or heat to travel along it or through it: