Selection list of options available for specific fields in a Salesforce object, for example, the Industry field for accounts. Users can choose a single value from a list of options rather than make an entry directly in the field. See also Master Picklist.

Selection list of options available for specific fields in a Salesforce object. Multi-select picklists allow users to choose one or more values. Users can choose a value by double clicking on it, or choose additional values from a scrolling list by holding down the CTRL key while clicking a value and using the arrow icon to move them to the selecte [..]

A list of values (words and phrases) from which an entry for a metadata field can or must be taken. Allowing only the picklist to be used will ensure that data integrity is maintained.