Englishfor English speakers
horizontal
Adjective
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Something that is lying down or "straight across" is horizontal. In a horizontal direction means straight across.
The road across the Nullabor plain is horizontal.
Dad hung a swing from a horizontal branch.
Horizontal stripes on a shirt make a person look wider.
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To be horizontal means to have something to do with the horizon.
amplifier
Noun
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An amplifier is an electronic device that increases the strength of a sound or signal.
You need to plug in the amplifier to get any sound.