G.B. Great Britain;--G.B. AND I., Great Britain and Ireland.
G.C.B. [Knight] Grand Cross of the [Most Honourable Order of the] Bath.
G.C.H. [Knight] Grand Cross of Hanover.
G.C.I.E. [Knight] Grand Commander [of the Most Eminent Order] of the Indian Empire.
G.C.L.H. Grand Cross of the Legion of Honour.
G.C.M. Greatest common measure.
G.C.M.G. [Knight] Grand Cross of [the Most Distinguished Order of] St Michael and St George.
G.C.S.I. [Knight] Grand Commander of the [Most Exalted Order of the] Star of India.
G.C.V.O. [Knight] Grand Cross of the [Royal] Victorian Order.
GEN. General; Genesis.
GEN., GENL. General.
GEN. Gender; Genitive; Genus.
GENT. Gentleman, Gentlemen.
G.F.S. Girls' Friendly Society.
GK. or GR. Greek.
G.M.T. Greenwich Mean Time.
G.O. General Order; Grand Organ.
G.O.M. Grand Old Man (W. E. Gladstone).
GOV. Government, Governor.
G.P. General Practitioner; Grateful Patient; _Gloria patri_=Glory to the Father.
G.P.O. General Post-office.
GR. Grain; Grammar; Gross.
G.S.P. Good Service Pension.
GU. Guinea; Gules.
H., HR. Hour.
H.B.M. His (or Her) Britannic Majesty.
H.C. Heralds' College; House of Commons; Holy Communion.
H.C.M. His (or Her) Catholic Majesty.
H.E., _hic est_=This is; _hoc est_=That is.
H.E.I.C.S. Honourable East India Company's Service.
HER. Heraldry; _Heres_=Heir.
HF. Half;--HF.-BD., half-bound;--HF.-CF., half-calf.
H.G. Horse Guards; His Grace.