Usage of 'straight' and 'straight up'

[Sitifan]

I heard that the tower was beautiful and straight when it was first built. Now the tower is not straight up anymore, but it is still visited often.
What's the difference in meaning between straight and straight up in the above passage?
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Thank you very much for your reply.

[Ganesh]

STRAIGHT IS NOWN AND SRAIGHT UP IS VERB
EG:
[1] FOOTRULER IS STRAIGHT

[2] STRAIGHT UP THE ROLL OF PAPER
Ganesh

[Ganesh]

YES

[Yankee]

Hi Sitifan

The word "straight" can be used to mean "upright"/"erect"/"not leaning". However, it is also frequently used to mean "not crooked"/"not wavy or bent".

To me, the phrase "straight up" means "not leaning" in the context.

Others may disagree.
.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln