Human
Definition 1 of 5
Pro Tip 1/3
Not always humans
The word 'human' as a noun specifically refers to our species, not any creature with human-like traits. Robots may act like us but they are not humans.
Pro Tip 2/3
Collective sense
Sometimes 'humans' is used to talk about everyone collectively, emphasizing the whole of humanity. Humans have always searched for meaning.
Pro Tip 3/3
Not 'the humans'
Avoid using 'the' with 'humans' unless you're distinguishing from other species. Humans, not animals, built cities.