Noun
a sign indicating the operation of addition
Source: WordNetBy convention, international telephone numbers are represented by prefixing the country code with a plus sign (+), which also indicates to the subscriber that the local international call prefix must first be dialed. Source: Internet
A plus sign is used to indicate forward movement. Source: Internet
For years AD, omit the AD and prefix the number with a plus sign (plus sign is optional if it is clear from the context that the year is after the year 0). Source: Internet
Its primary storage was serial-access mercury delay lines capable of storing 1,000 words of 11 decimal digits plus sign (72-bit words). Source: Internet
On GSM (cellular) networks, the prefix may automatically be inserted when the user prefixes a dialed number with the plus sign. Source: Internet
The moment direction may be accounted for by using a stated sign convention, such as a plus sign (+) for counterclockwise moments and a minus sign (−) for clockwise moments, or vice versa. Source: Internet