marks vs markings

[jctgf]

hi,

I wonder if these words are synonyms.

I also would like to know if these sentences are correct:

"Aircraft of the U.S. Navy and U.S. Marine Corps have carried distinguishing markings almost from the beginning of naval aviation..."

"He was beaten so hard that he carried marks/markings for the rest of his life"

may I say "psychological markings/marks" in the sense of psychological scars?

thanks.

 

[linsuman]

Markings are arrangements of marks on an object.
Marks are letters, #'s, impressions, signs, stains, etc.
Therefore, sentence 1 could be correct.
2-marks.
3-marks.

 

[Anglika]

They are not synonymous.

Markings are symbols, colourations on animals, deliberate identifications.

Marks [in the contexts you have given] are scars.