Definitions
1.Prepositional phraseUsed other than figuratively or idiomatically: see in, one's, head.
2.Prepositional phraseWithin one's intellect, memory, or mind.
3.Prepositional phraseWithin one's imagination; without basis in reality.
4.Prepositional phraseMentally.
5.Prepositional phraseAnxious due to overthinking an issue.