Another slightly archaic adverb for outside is without (opposite of within).The term survives today mainly in street names of walled cities, such as Bishop Street Without in Londonderry, Northern Ireland. These add-ons to the original street names (in this case Bishop Street) came about as towns grew beyond the confines of the walls and were used to denote that part of the street that was without (i.e. outside) the town's walls.
Adverb
outside
It can be either. Or also a preposition, or a noun. outside chance, outside wall - adjective stepped outside - adverb outside the lines - preposition the outside of the cup - noun
Adverbs
The adverb in the sentence is outside which modifies the verb 'worked'.
There are no adverbs in this sentence. Mom = noun is = auxiliary verb waiting = gerund outside = preposition adverb for = preposition them = object pronoun. "outside" can be used as a preposition, but here it's an adverb
outside
Adverb
The adverb in the sentence is outside, which modifies the verb 'will be eating'.
The term "outside" can be used as a preposition AND an adverb - depending on how the sentence is phrased.For example:I walked outside. (In this sentence, "outside" is an adverb because "I walked" can stand alone as an individual sentence.)Outside of the house, the winds roared. (In this case, "outside" is a preposition because the rest of the sentence cannot stand alone.)
The adverb is 'later' because it describes when you might be now to play outside.
It is an adverb modifying the verb (playing).