Kill humanoids
A humanoid has a head two arms & two legs walks and talks as a man
Why the he'll don't I get endeavour for
Killing vampires
Killing goblins
Killing humanoid daedra?
Those are all classified as monsters. The game is only referring to actual "normal" human-like creatures. Essentially, if you cannot play as that race of creature it is likely not considered humanoid in ESO.
Creatures appear to have only one label, so a human vampire is classified as vampire only, not humanoid and vampire. This has already sparked discussions here, since, for example, some clearly chitinous animals aren't considered chitinous for endeavor purposes.
Imperial DK and Necro tank. PC/NA
"Nothing is so bad that it can't get any worse." (Brazilian saying)
If you had multiple classifications for everything,they might as well say kill anything to get it,lol.They do it this way to give variety and have people goto diff areas to give the game a more lively feel.