also

As adjectives the difference between tough and also

is that tough is strong and resilient; sturdy while also is bottom, lower.

As an interjection tough

is (slang) (used to indicate lack of sympathy).

As a noun tough

is a person who obtains things by force; a thug or bully.

As a verb tough

is to endure.

As an adjective also is

bottom, lower.

More is a related term of also.

As a noun more

is tomorrow.

As an adjective also is

bottom, lower.

As an adjective also

is bottom, lower.

As a proper noun just is

, cognate to english justus.

As an adjective also

is bottom, lower.

As a noun addition is

addition.

As an adjective also

is bottom, lower.

As a noun to is

thaw, weather conditions that make snow and ice melt.

In obsolete terms the difference between either and also

is that either is both, each of two or more while also is to the same degree or extent; so, as.

As a determiner either

is each of two.

As a pronoun either

is both, each of two or more.

As a conjunction either

is introduces the first of two options, the second of which is introduced by "or".

As adjectives the difference between otherwise and also

is that otherwise is other than supposed; different while also is bottom, lower.

As an adverb otherwise

is (lb) differently, in another way.