A dictionary defines the word vertical adj as: straight up and down.

So can I say someone draw a line that is straight up and down?

Can the word horizontal mean straight from side to side?

Please explain.

Thanks in advance.

2 Answers 2



is from top to bottom or bottom to top, i.e. Vertical Line


is from left to right or right to left, i.e.

Horizontal Line

  • I am familiar with that but my question is different.
    – user100323
    Sep 21, 2019 at 14:09

Yes, you can say "draw a line that is straight up and down", and the person should draw a vertical line. Similarly I would understand "straight (from) side to side" to mean horizontal.

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