Meaning of INK in English

I. ink 1 /ɪŋk/ BrE AmE noun

[ Date: 1200-1300 ; Language: Old French ; Origin: enque , from Late Latin encaustum , from Greek enkaiein 'to burn in' ]

1 . [uncountable and countable] a coloured liquid that you use for writing, printing, or drawing:

Please write in black ink.

2 . [uncountable] the black liquid in sea creatures such as ↑ octopus es and ↑ squid

II. ink 2 BrE AmE verb [transitive]

1 . to put ink on something

2 . to make a document, agreement etc official and legal by writing your ↑ signature on it:

The two companies have inked a deal.

ink something ↔ in phrasal verb

to complete something done in pencil by drawing over it in ink

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.