HD

¹ American  

abbreviation

1. high-definition; high definition.

   channels that broadcast in HD;

   HD video;

   HD DVDs;

   an HD display on my new tablet.

2. Computers. high definition.

3. Huntington's disease.

---

hd. ² American  

abbreviation

1. hand.

2. head.

---

h.d. ³ American  

abbreviation

1. (in prescriptions) at bedtime.

---

h.d. ⁴ American  

abbreviation

1. heavy duty.

---

hd British  

abbreviation

1. hand

2. head

---

Etymology

Origin of h.d.

From New Latin hōra dēcubitūs

Example Sentences

In Australia, Surfshark averaged 160 Mbps and NordVPN came in slightly lower at 150 Mbps, though both providers delivered stable performance suitable for HD and 4K streaming.

From Salon • Mar. 27, 2026

The group expects to offer Wegovy HD in a single-dose pen in the U.S. next month.

From The Wall Street Journal • Mar. 19, 2026

BMO Capital Markets analyst Evan David Seigerman called the approval of Wegovy HD “a step in the right direction for Novo as the company works to reinvigorate its commercial business.”

From MarketWatch • Mar. 19, 2026

The operation was performed from The London Clinic using a robot equipped with a 3D HD camera and four arms, all controlled through a console with a delay of only 0.06 seconds.

From BBC • Mar. 6, 2026

“Uncle Greg has all the HD swag you can imagine. Including a pack of onesies and a tiny leather jacket.”

From "The Season of Styx Malone" by Kekla Magoon