I. ˈel(t)s adverb
Etymology: Middle English elles, from Old English; akin to Latin alius other, alter other of two, Greek allos other
Date: before 12th century
1.
a. : in a different manner or place or at a different time
how else could he have acted
here and nowhere else
b. : in an additional manner or place or at an additional time
where else is gold found
2. : if not : otherwise
leave or else you'll be sorry
— used absolutely to express a threat
do what I tell you or else
II. adjective
Date: before 12th century
: other :
a. : being different in identity
it must have been somebody else
b. : being in addition
what else did he say?