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WordBand 6–7Core (NGSL)
invent
/ɪnˈvɛnt/
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back upPhrasal verbTo support a claim or to make a copy of data.
fall behindPhrasal verbTo fail to keep pace with others.
keyboardnounA set of keys you press to type letters and numbers into a computer.
touchscreennounA display that reacts when you press it with a finger.
cursornounThe small mark on a screen that shows where you are typing or clicking.
encryptionnounTurning information into a secret code so only the right people can read it.
satellitenounAn object that travels around the Earth in space, used to send signals or take images.
sensornounA device that detects heat, light or movement and reports it.
Source: New General Service List (Browne, Culligan & Phillips) (CC BY-SA 4.0); Wiktionary (CC BY-SA 3.0); Tatoeba (CC BY 2.0 FR)