plus

American  

[pluhs] / plʌs /

preposition

1. more by the addition of; increased by.

   ten plus two is twelve.

2. with the addition of; with.

   He had wealth plus fame.

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adjective

1. involving or noting addition.

2. positive.

   a plus quantity.

3. more (by a certain amount).

4. Electricity. pertaining to or characterized by positive electricity.

   the plus terminal.

5. Mycology. (in heterothallic fungi) designating, in the absence of morphological differentiation, one of the two strains of mycelia that unite in the sexual process.

6. having a certain quality to an unusual degree.

   He has personality plus.

noun

pluses, plural plusses plural

1. a plus quantity.

2. Arithmetic. plus sign.

3. something additional.

4. a surplus or gain.

conjunction

1. Informal. also; and; furthermore.

   A bicycle is cheaper than a car, plus it doesn't pollute the air.

adverb

1. in addition; besides.

idioms

1. pluses and minuses, the good and bad points of something; the advantages and disadvantages; the pros and cons.

   She spent hours listing the pluses and minuses of each of the apartments she had looked at, trying to narrow down her choices.

plus British  

/ plʌs /

preposition

1. increased by the addition of

   four plus two (written 4 + 2)

2. with or with the addition of

   a good job, plus a new car

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adjective

1. Also: positive.  (prenominal) indicating or involving addition

   a plus sign

2. another word for positive positive

3. on the positive part of a scale or coordinate axis

   a value of +x

4. indicating the positive side of an electrical circuit

5. involving positive advantage or good

   a plus factor

6. informal (postpositive) having a value above that which is stated or expected

   she had charm plus

7. (postpositive) slightly above a specified standard on a particular grade or percentage

   he received a B+ rating on his essay

8. botany designating the strain of fungus that can only undergo sexual reproduction with a minus strain

noun

1. short for plus sign

2. a positive quantity

3. informal something positive or to the good

4. a gain, surplus, or advantage

Usage

Since plus as a preposition has long had the meanings “more by the addition of ” and “with the addition of,” it was but a short step to a newer use, mainly in informal writing and speech, as a conjunction meaning “also, and, furthermore.” Although this use is increasing, many object to it, and it is rare in more formal writing. And plus is likewise objected to, especially for being redundant: The paper was delivered two hours late, and plus it was soaking wet.

Plus, together with, and along with do not create compound subjects in the way that and does: the number of the verb depends on that of the subject to which plus, together with, or along with is added: this task, plus all the others, was (not were ) undertaken by the government; the doctor, together with the nurses, was (not were ) waiting for the patient

Other Word Forms

Noun Inflected Forms

• pluses
  plural
• plusses
  plural

Etymology

Origin of plus

First recorded in 1570–80; from Latin plūs “more”; akin to Greek pleíōn, Old Norse fleiri “more,” Old English feolu, fela, German viel, Gothic filu, Old Irish il, Greek polý “many”

Explanation

A plus is an “advantage” or an “asset.” You might look silly walking around with flippers all day, but if you lived underwater, they would definitely be a plus. In Latin, the route plus means “more.” The word plus in English can have many senses, all relating to this idea of more, addition, or positive. This noun sense of the word means “a positive quality.” In the same way a number above zero on a number line is positive, and can use a plus sign, a plus is "a positive asset," like a superhero’s ability to fly or a spy’s ability to speak several languages.

Example Sentences

Mounjaro and Zepbound contain tirzepatide, which targets that hormone plus another one involved in metabolism.

From Los Angeles Times • Jun. 23, 2026

The projects include a giant White House ballroom and a triumphal arch -- plus the Reflecting Pool by the Lincoln Memorial, which is currently beset by algae and peeling paint after a multi-million-dollar upgrade.

From Barron's • Jun. 23, 2026

In the AI age, Copilot and Azure provide a base for corporate adoption, plus Microsoft holds a significant stake in OpenAI and continues to work on its own frontier models.

From MarketWatch • Jun. 22, 2026

If Coca-Cola wins, it gets that back, plus interest.

From The Wall Street Journal • Jun. 21, 2026

On the plus side, I didn’t wear a diaper.

From "Not Nothing" by Gayle Forman

Related Words

• excess
• extra