Meaning of MARKING in English

MARKING

[noun] [C]Markings are marks which make it possible to recognize something.There are a couple of fish with blue markings, and a few more with gold stripes down the side.A police spokeswoman said there were several ways for car thieves to alter identification markings on stolen cars.The army said the relief flight would be too dangerous as none of its helicopters had Red Cross markings.Markings are also marks.I have had little success in removing these paint markings.

Cambridge English vocab.      Кембриджский английский словарь.