res

¹ American  

[reez, reys] / riz, reɪs /

noun

Chiefly Law.

plural

res

1. an object or thing; matter.

---

RES ² American  

abbreviation

Immunology.

1. reticuloendothelial system.

---

res. ³ American  

abbreviation

1. research.

2. reserve.

3. residence.

4. resident; residents.

5. resigned.

6. resolution.

---

res. ¹ British  

abbreviation

1. residence

2. resides

3. resigned

4. resolution

---

res ² British  

/ reɪs /

noun

1. a thing, matter, or object

---

Etymology

Origin of res

First recorded in 1850–55, res is from the Latin word rēs

Example Sentences

The law deems them res nullius, which literally means a thing belonging to nobody - so responsibility falls to individual landowners.

From BBC • Dec. 25, 2025

The prevailing party would likely cite the doctrine of res judicata, which says that a claim that reaches judgment in one court should not be relitigated in a second.

From Reuters • May 9, 2023

Not necessarily in chronology — since the flashbacks and -forwards of “Lost,” TV has become suffused with in media res openings and Vonnegutian unstickings in time.

From New York Times • Jan. 6, 2023

Butler's novel structure likely defied simple adaptation until recent years when the whole "in media res" gambit became fashionable.

From Salon • Dec. 13, 2022

Parva res omnium qui hodie Vaint, maximum et potentissimum et cla-rissimum te reddere potest Quæris quid sit?

From The Power Of The Popes by Daunou, Pierre Claude Fran?ois