Different, substitute, replacement, surrogate, in place of, in lieu, in preference, rather that, preferably
Some words with the root word "alter" include alteration, alternate, and alternative.
backup, temporary, another, alternative, substitute
Alternative, Alternate, Altered
Other, alternate, second, substitute, different...
A secondary answer to a similar question. for example: Question - Energy for humans Answer - oil, coal, alternative (derived from the word alternate) answer - solar power, wind
Alternate can be used as a noun, a verb, or an adjective.Noun: The person who was elected did not come to the meeting, but the alternate did arrive on time.Verb: Sally and Susan alternate between chores.Adjective: an alternate decision
alternate
A word that means an alternate word, with the same definition is a synonym. Comment: Just for information, I live in England. We don't normally use the word "alternate" to mean "a possible choice between things". We use the word "alternative". When I joined "Answers" it took me a couple of minutes to figure out what "Edit alternates" meant.
another, additional, alternate, alternative, extra, different, separate, added, diffrent , more
with the alternative hypothesis the reasearcher is predicting
The prefix "alt" typically means alternative or alternate. It is used to indicate a different or substitute option, as in words like "alternative," "alternate," or "altercation."
Alteration, alternative, alternate...