What is plus sign?
The plus sign is the symbol "+," used most often in math to mark addition or a positive value, and in English writing as a quick shorthand for "and." You see it in headlines, product names and marketing copy, such as "Disney+" or "6 meeting rooms + 2 phone booths." In running prose the mark reads as shorthand rather than part of standard punctuation, so most style guides treat it as a display choice rather than a default.
Brand name: Disney+.
Technical or pricing: $99+ per month.
Display shorthand: 6 meeting rooms + 2 phone booths.
Why does plus sign matter?
The plus sign matters because, like the ampersand, it reads as compact, mathematical or a little casual, and the context around it sets the tone. In body copy it can feel sloppy, since "and" is almost always clearer, but in tight display contexts such as logos, navigation items and product tiers, a plus sign can add energy without eating space. Setting a clear rule for your brand keeps "and" from drifting into "+" in places where it does not belong.
How do you use plus sign?
Keep the plus sign in official brand names exactly as the company writes them, such as "Disney+" or "Google+."
Use the plus sign in mathematical, technical and pricing contexts, such as "2 + 2" or "$99+ per month."
Spell out "and" in running prose, headings and body copy, and reserve "+" for display surfaces and technical notation.
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