+

Two lines crossed in the middle: one vertical line and one horizontal line.

From a ligature of Latin et (“and”). Compare & and ⁊ of same meaning.

+ (English symbol name plus sign or plus)

1. (arithmetic, algebra) Addition, additive operation.

   3 + 2 = 5

2. (mathematics) Explicitly indicates that the next number is positive.

   +5 is different from −5

3. (informal) "Or more"; indicates that a number is the minimum quantity or amount.

   This project is going to take 10+ years to complete. (10 or more years)

4. (mathematics) From the positive side.

   ${\displaystyle \lim _{x\to a^{+}}f(x)}$ is the same as ${\displaystyle \lim _{x\downarrow a}\,f(x)}$

5. (mathematics) A disjoint union, a coproduct.
6. (mathematics, logic) An inclusive disjunction.
7. (genetics) A wild type.
8. (botany) A grafted hybrid.[1]
9. (programming) A string concatenation in some programming languages (that might be ambiguous with an additive operation).

   "My name is " + name + ". I am " + age + " years old."

10. (regular expressions) Detects one or more occurrences of the preceding element.

    The string ab+c matches "abc", "abbc", "abbbc", and so on, but not "ac".

11. (chess notation) Check.
12. A placeholder standing for the international call prefix in phone numbers.

    Sure, call me if you want. My number is +496919725.

13. (medicine) An affirmative result from a laboratory test.
14. (electricity) An anode.
15. Indicating north.
16. (music) Augmented.

• The + symbol is called the plus sign in English (see there for translations).

• For quotations using this term, see Citations:+.

• ﬩
• (symbol for and): &, ⁊

• (antonym(s) of “addition or positiveness”): - or −, sometimes ÷

• A+, B+, O+, AB+, Rh+
• A+, B+, C+, D+
• +ve
• +1

• plus sign
• (chess): ++
• ⧺
• ⧻
• 十

+

1. (computing) When placed between key names, indicates that they should be pressed simultaneously.

   Press Ctrl+C to copy!

2. (siglum, informal) and

For quotations using this term, see Citations:+.

+

1. (text messaging, slang) more

+

1. Abbreviation of and.

• In stenoscript, this is only used for the conjunction 'and'. The sound sequence /Vnd/ is written —.

+

1. (neologism, Covid-19) denotes the immigration policy where the preceding number is the number of days required for quarantine and the following number is the number of days for medical monitoring

   7+3

   (the policy of) 7 days of quarantine followed by 3 days of medical monitoring