English Reference
noun · verb

bat

n. · v.
US /ˈbæt/ UK /bˈæt/ bat UK spelling bat's, bat's

  1. 01 A2 Elementary

    n.a small animal like a mouse with wings that flies at night.

    n.a nocturnal flying mammal of the order Chiroptera, characterized by forelimbs modified into wings.

    Simple

    We saw a bat fly out of the cave just as the sun went down.

    In context

    Ecologists are monitoring the local bat population to see how the new highway affects their nocturnal hunting patterns.

  2. 02 A2 Elementary Sport

    n.a long piece of wood or metal used to hit the ball in games like baseball or cricket.

    n.a club-shaped implement, typically made of wood or composite materials, used for striking the ball in various field games.

    Simple

    He grabbed his baseball bat and ran out to the field.

    In context

    The professional cricketer selected a heavy willow bat, checking the grain of the wood for any signs of weakness before the match.

  3. 03 B1 Intermediate Sport

    v.to take your turn hitting the ball in a game.

    v.to take a turn as the hitter in sports such as baseball or cricket; to strike a ball with a bat.

    Simple

    Our team is going to bat first in the second half of the game.

    In context

    The captain decided to bat first after winning the toss, hoping to set a high score on the dry pitch.

  4. 04 B2 Upper Intermediate

    v.to open and close your eyes quickly, usually to get attention.

    v.to flutter the eyelashes, often as a flirtatious or feigned innocent gesture; usually used in the phrase 'to bat one's eyelashes'.

    Simple

    She didn't say a word, she just batted her eyelashes and smiled.

    In context

    He tried to look innocent by batting his eyelashes, but the teacher knew exactly who had started the argument.

  5. 05 C1 Advanced Informal

    n.an unkind way to describe an old woman who is annoying or strange.

    n.a derogatory term for an elderly woman, implying she is eccentric, unpleasant, or unattractive.

    Simple

    The neighbor is a bit of an old bat, always complaining about the noise.

    In context

    Though the character was written as a bitter old bat, the actress brought a surprising amount of vulnerability to the role.

    hagcrone
  6. 06 B2 Upper Intermediate Informal

    n.the speed at which something happens.

    n.the rate of motion or speed, most commonly found in the idiomatic expression 'right off the bat'.

    Simple

    I knew right off the bat that we were going to be great friends.

    In context

    The new CEO made several major changes right off the bat, surprising the board with her decisive leadership style.

  7. 07 C1 Advanced Technical Computing

    n.a name for the three biggest technology companies in China: Baidu, Alibaba, and Tencent.

    n.An acronymic collective noun referring to the dominant Chinese technology firms Baidu, Alibaba, and Tencent.

    Simple

    Investors are closely watching the BAT companies for growth in the Asian market.

    In context

    The regulatory crackdown on the BAT group has significantly altered the landscape of the Chinese digital economy.

Davey said DNA swabs were trialled by ecologists from Yorkshire Water and the South Yorkshire Bat Group.

BBC News· 14 Aug 2026

Hummingbirds, bats, and insects all fly, but they do so in different ways.

ScienceDaily· 24 Jun 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated