There are 2 definitions of GR in English:

GR1

Line breaks: GR

Entry from British & World English dictionary

abbreviation

1Greece (international vehicle registration).
1.1King George.
[from Latin Georgius Rex]

Definition of GR in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal

There are 2 definitions of GR in English:

gr2

Syllabification: gr
(also gr.)

abbreviation

1Grain(s).
1.1Gram(s).
1.2Gray.
1.3Gross.

Definition of GR in: