else
/ɛls/
adjective
Meaning
(used only with indefinite or interrogative pronouns) Other; in addition to previously mentioned items.
"The instructor is busy. Can anyone else help me?"
adverb
Meaning
(follows interrogative adverbs) Otherwise, if not.
"How else (=in what other way) can it be done?"
Synonyms
conjunction
Meaning
For otherwise; or else.
"Then the Wronskian of f and g must be nonzero, else they could not be linearly independent."