| Subject | German | English |
| agric. | Gluconsäure CH2OH. CHOH 4COOH | gluconic acid CH2OH.(CHOH)4COOH |
| chem. | Glycerin CH2OH | glycerine |
| chem. | Glycerin CH2OH | E 422 |
| chem. | HO-OSO-OSO-OH | H2S2O6 |
| chem. | HO-OSO-OSO-OH | dithionic acid |
| chem. | HO-SO2-O-OH | H2SO5 |
| chem. | HO-SO2-O-OH | permonosulphuric acid |
| chem. | HO-SO2-O-OH | Caro's acid |
| agric., chem. | Isoamylalkohol CH3.CH23.CH2OH | isoamyl alcohol CH3.(CH2)3.CH2OH |
| agric., chem. | Isoamylalkohol CH3.CH23.CH2OH | amyl alcohol |
| chem. | NH4OH | ammonia in aqueous solution |
| life.sc. | OH Boden | OH soil |
| abbr. | oh, by the way | OBTW |
| gen. | Oh! Das ist toll! | oh! that's good! |
| gen. | oh du liebe Zeit | good gracious |
| gen. | Oh, Entschuldigung! | oh sorry |
| gen. | Oh Gott! | Good heavens! |
| gen. | Oh Gott! | God in Heaven! |
| abbr. | Oh, I see! | OIC |
| gen. | oh ja | Oh yes (Andrey Truhachev) |
| gen. | Oh je! | Ay me! archaic, poet. |
| gen. | Oh je! | Oops! |
| gen. | Oh mein Gott! | Jesus! |
| gen. | Oh mein Gott! | Oh My God! OMG |
| abbr. | Oh my god! | OMG |
| gen. | Oh nein, nicht das schon wieder | Oh no, not this again ONNTA |
| gen. | Oh nein, nicht Du schon wieder | Oh no, not you again ONNYA |
| gen. | Oh nein, nicht schon wieder. | Oh, not again. |
| gen. | Oh nein, nicht schon wieder | Oh no, not again ONNA |
| abbr. | Oh no, not again | ONNA |
| abbr. | Oh no, not this again | ONNTA |
| abbr. | Oh no, not you again | ONNYA |
| gen. | oh-oh Interj. | uh-oh interj. |
| amer., inf. | oh weh | geez |
