Joker
Truncation

Truncation is like a wildcard. Added to the stem of a word, a truncation symbol will find that stem plus anything that comes after it. The symbol used to truncate a word depends upon the database or Web search engine you are using.

market?
will return records on market, marketing, markets.? is used as the truncation symbol, for example, in AlleyCat, the library catalog.
pig*
will return records on pig, pigment, pigmentation, pigments, pig
advertis*
will return records on advertise, advertised, advertising, advertisement, advertisements.
* is used as the truncation symbol in the EBSCOhost databases, like MasterFILE Premier and Academic Search Premier.
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