| Subject | English | German |
| astr. | central Ha intensity | Zentralintensität der Ha Linie |
| tech. | Ha-bann tube | Habann-Roehre |
| construct., amer. | ha-ha | Grabenabgrenzung |
| construct., amer. | ha-ha | versenkter Zaun |
| gen. | ha-ha | Ha-Ha Graben als Park- oder Gartenbegrenzung |
| gen. | ha, ha, just only kidding koking HHJK, HHOJ, HHOK | Haha, war ja nur Spaß! |
| gen. | ha, ha, only serious! HHOS | Das war jetzt aber ernst! |
| brit. | ha'penny spv., dated | halber Penny |
| gen. | HA test | Hämagglutinationstest |
| sport. | Has a goal been scored? | Ist ein Tor gefallen (Andrey Truhachev) |
| sport. | Has a goal been scored? | Ist ein Tor gefallen? (Andrey Truhachev) |
| gen. | Has anyone left an umbrella here? | Ist hier ein Schirm stehen geblieben? |
| comp., MS | Has Floor status | Status "Hat das Wort" (A status given by the presenter to a meeting participant who has asked a question by using the Questions and Answers pane so that an online chat session between the participant and presenter is displayed to all meeting participants) |
| inf. | hoo-ha | Brimborium |
| inf. | tuppenny-ha'penny | lächerlich |
| environ. | type HA filter | Filtertyp HA |
| agric. | yield per ha | Hektarertrag |
| agric. | yield per ha | Ertrag |