coach

car, bus, truck, lorry, coach, automobile, jeep, carriage, wagon

teach, instruct, educate, coach, train, tutor

名词 coach:

1. (sports) someone in charge of training an athlete or a team
   同义词：manager, handler
2. a person who gives private instruction (as in singing or acting)
   同义词：private instructor, tutor
3. a railcar where passengers ride
   同义词：passenger car, carriage
4. a carriage pulled by four horses with one driver
   同义词：four-in-hand, coach-and-four
5. a vehicle carrying many passengers; used for public transport
   同义词：bus, autobus, charabanc, double-decker, jitney, motorbus, motorcoach, omnibus, passenger vehicle

动词 coach:

1. teach and supervise (someone); act as a trainer or coach (to), as in sports
   同义词：train
2. drive a coach

1. I had made on the coach a good impression when I went out for volleyball.
   我申请加入排球队时给教练留下了良好的印象。
2. The coach is bringing on some girls in the reserve team.
   教练正教导预备队的女孩们练球。
3. He is not so much a player as a coach.
   与其说他是个队员，不如说他是个教练。
4. The coach substituted Smith for Jones.
   教练让史密斯上场，换下了琼斯。
5. She'll be coaching all summer.
   她整个夏天将要作辅导工作。
6. They went to Tianjin by coach.
   他们乘长途公共汽车去天津。
7. I coach people for English exams.
   我为准备英语考试的人做辅导。
8. The football coach was criticized by the local paper.
   这位足球教练受到了当地报纸的批评。

coach

n.（名词）

A motorbus.
公共汽车
A railroad passenger car.
铁路客车
A closed automobile, usually with two doors.
双门轿车：封闭式汽车，通常有两个门
A large, closed, four-wheeled carriage with an elevated exterior seat for the driver; a stagecoach.
四轮大马车：外部有高的驾驶座的封闭式四轮大马车；公共马车
An economical class of passenger accommodations on a commercial airplane or a train.
经济舱：民航飞机或火车乘客铺位的经济型
Sports A person who trains or directs athletes or athletic teams.
【体育运动】 教练：训练和指导运动员或运动队的人

A person who gives instruction, as in singing or acting.
指导员：在歌唱或表演上给予指导的人
A private tutor employed to prepare a student for an examination.
私人教师：为学生准备考试而雇用的私人教师
v.tr.intr.（及物动词和不及物动词）
coached,coach.ing,coach.es
To train or tutor or to act as a trainer or tutor.
教练：训练或指导，或起教练或私人教师作用
To transport by or ride in a coach.
以马车载运：由公共马车运输或乘坐公共马车

来源：
French coche
法语 coche
from obsolete German Kotsche
源自 已废德语 Kotsche
from Hungarian kocsi
源自 匈牙利语 kocsi
after Kocs , a town of northwest Hungary (where such carriages were first made)
源自 科克斯 ，匈牙利西北部一城镇（这种马车在这里首次被制造）

【引伸】
coach.able
adj.（形容词）
coach.er
n.（名词）