What is the meaning of Excursion?

A brief recreational trip; a journey out of the usual way.

A field trip.

A wandering from the main subject: a digression.

An occurrence where an aircraft runs off the end or side of a runway or taxiway, usually during takeoff, landing, or taxi.

A deviation in pitch, for example in the syllables of enthusiastic speech.

To go on a recreational trip or excursion.

excursion

wander (talk off topic)

Source: wiktionary.org