and/or

and/or  (ndôr)

conj.

Used to indicate that either or both of the items connected by it are involved.

Usage Note: And/or is widely used in legal and business writing. Its use in general writing to mean "one or the other or both" is acceptable but can appear stilted. See Usage Note at or¹.

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and/or

conj

(coordinating) used to join terms when either one or the other or both is indicated passports and/or other means of identification

Usage: Many people think that and/or is only acceptable in legal and commercial contexts. In other contexts, it is better to use or both: some alcoholics lose their jobs or their driving licences or both (not their jobs and/or their driving licences)