Longman Dictionary of Contemporary English
cross-
prefix
EXAMPLES FROM OTHER ENTRIES
▪ cross-country skiing
Douglas Harper's Etymology Dictionary
cross-
word-forming element typically representing cross as a verb, adverb, adjective, and in many words a confluence of them.
Wiktionary
cross-
pre. 1 Indicating an exchange or switch. 2 Indicating a direction (across). 3 Indicating applicability to several domains that are usually separate (as in (term: crossclass), (term: crosslinguistic), (term: cross-platform)).