# [intransitive] (of a vehicle or person) to start to go faster.

• The runners accelerated smoothly around the bend.

• The car accelerated to overtake me.

• The car purred into life and accelerated away.

OPPOSITE decelerate;

# (also gas pedal) the pedal in a car or other vehicle that you press with your foot to control the speed of the engine.

• She put her foot on the accelerator and we sped through the traffic lights.

# [intransitive, transitive] decelerate (something) to reduce the speed at which a vehicle is travelling.

# throttle (something) back/down/up: to control the supply of fuel or power to an engine in order to reduce/ increase the speed of a vehicle.

• I throttled back as we approached the runway.

# [intransitive, transitive] if a car horn honks or you honk or honk the horn, the horn makes a loud noise.

SYNONYM hoot;

• honking taxis

• She rushed from the room at the sound of the taxi honking.

• honk at somebody/something Why did he honk at me?

• honk something People honked their horns as they drove past.

# [intransitive, transitive] (British English) if a car horn hoots or you hoot or hoot the horn, the horn makes a loud noise.

SYNONYM honk;

• The car behind me hooted impatiently.

• hoot at somebody/something Why did he hoot at me?

• hoot something Passing motorists hooted their horns.

• The train hooted a warning (= the driver sounded the horn to warn people).

# [countable] a device in a vehicle for making a loud sound as a warning or signal.

• to honk your car horn

• (British English) to sound/ toot your horn

• Behind him, a horn blared.

SEE ALSO foghorn;

# [intransitive, transitive] (especially British English) ​when a car horn toots or you toot it, it makes a short, high sound.

• the sound of horns tooting

• A horn tooted outside signaling the arrival of my taxi.

• toot something Toot your horn to let them know we're here.

# a long narrow piece of ground with a hard surface that an aircraft takes off from and lands on.

• The plane taxied along the runway.

# (especially North American English) (also catwalk British and North American English) the long stage that models walk on during a fashion show.

# [intransitive] ​(of a plane/ aircraft) to move slowly along the ground before taking off or after landing (to move slowly on the ground).

• After a half-hour delay, our plane taxied to the runway for takeoff.

# (also kick-starter) the part of a motorcycle that you push down with your foot in order to start it; a metal bar that you push down forcefully with your foot to make the engine of a motorcycle start.  

• He gave the motorcycle kickstart a firm push to bring the engine roaring to life. (Anh ta đẩy mạnh cần đề xe máy để đưa động cơ phát ra tiếng vọng mãnh liệt.)

• The old motorcycle relied on a traditional kickstart mechanism, requiring a strong kick to start the engine. (Chiếc xe máy cũ dựa vào cơ chế đề xe máy truyền thống, yêu cầu một cú đạp mạnh để khởi động động cơ.)

# kick-start something: to start a motorcycle by pushing down a lever with your foot.  

# a metal part attached to a bicycle, motorcycle, etc. that is used to support it when it is not moving and no one is riding it; a long straight piece of metal fixed to a bicycle or a motorbike, used to make the bike stand upright when the bike is not in use.

• The bikes have baskets and kickstands.

• He kicks the kickstand up with his left foot, then swings his other leg over the motorcycle and climbs on.

# [intransitive] climb + adv./prep.: to move somewhere, especially with difficulty or effort, using hands as well as feet.

• I climbed through the window.

• She opened the passenger door and climbed in.

• The boys climbed over the wall.

• Sue climbed into bed.

• Can you climb down?

• He finished digging the grave and climbed out.

# [intransitive] + adv./prep. to move along quickly.

• They sped off to get help.

• The car sped along the road towards the village.

• He sped away on his bike.

• the sound of a motorcycle speeding down the street

• We turned and watched a train speeding by.

# [transitive] speed somebody/ something + adv./prep. (formal) to take somebody/ something somewhere very quickly, especially in a vehicle.

• The cab speeded them into the centre of the city.

# [intransitive] (usually used in the progressive tenses) to drive faster than the speed that is legally allowed.

• The police caught him speeding.

• Accident investigators said evidence appeared to suggest that he was not speeding.

• Most drivers speed, at least occasionally.

• Speeding motorists are a danger to others.

# speed up/ speed something up l ​to move or happen faster; to make something move or happen faster.

• The train soon speeded up.

• Can you try and speed things up a bit?

• They have speeded up production of the new car.

• The daring new technique dramatically speeded up the construction process.

# (also exhaust pipe British and North American English) a pipe through which waste gases come out of a vehicle.

# a leather seat for a rider on a horse.

• She swung herself into the saddle.

# a seat on a bicycle or motorcycle.

#