mankind
Mankind (noun) means the human race as a whole. Example: “Fire was one of the earliest tools that mankind learned to control.”
How to use mankind
Learner’s notesIn plain EnglishAll human beings, considered together.
Many modern style guides prefer "humanity" or "humankind" as more gender-neutral alternatives.
Fill the gap
Can you complete this real example?
Fire was one of the earliest tools that _____ learned to control.
Etymology
From Old English mancynn, a compound of man and cynn ("kin"), reshaped in Middle English under the influence of the word "kind."