Is substitute and replace the same?

If you are referring to replacing something that is broken, old, or not working/inoperative, then you replace it with a new one . If you are referring to filling the role of someone or something with a substitute, then it is ‘replaced by’. “Human bank tellers have all but been replaced by ATMs.”

verb (used with object), re·placed , re·plac·ing. to assume the former role, position, or function of; substitute for (a person or thing): Electricity has replaced gas in lighting.

‘Replace’ means to arrange for something to take the place of something else. It may be the same type of thing or it may be something that will do the job just as well. ‘Substitution’ is the act of replacing one thing with another thing that is not the same, but will presumably do.

to take the place of something, or to put something or someone in the place of something or someone else : The factory replaced most of its workers with robots.

“We need to completely replace our old furniture.” “The manager quickly replaced his secretary.” “She cannot be easily replaced.” “We are going to finally replace our old car.”

As verbs the difference between replace and change is that replace is to restore to a former place, position, condition, or the like while change is to become something different .

Some common synonyms of replace are displace, supersede, and supplant . While all these words mean “to put out of a usual or proper place or into the place of another,” replace implies a filling of a place once occupied by something lost, destroyed, or no longer usable or adequate.