substitute

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Related to substituting: accenting

serve as a/(one's) substitute

To take the place or fill the purpose of someone or something else. We created these wood pellets from repurposed sawdust to serve as more a ecologically friendly substitute for other fuel sources. This is Shawna, everyone. She's going to be serving as my substitute while I'm on sabbatical.
See also: serve, substitute

sub for (someone or something)

1. To act as a substitute for someone or something. ("Sub" is an abbreviation of "substitute.") I'm subbing for Eric for the next few days while he recovers in the hospital. Don't believe anyone who tries to convince you that low-fat cooking sprays can sub for real butter or olive oil and not taste any different.
2. To use, employ, or instruct someone or something to act as a substitute for someone or something else. In this usage, a noun or pronoun is used between "sub" and "for." With a healthy 30-point lead, the coach subbed the rookie for the star quarter back to give him some experience on the field. Let's try subbing an AC motor for the DC one we've been using and see if that improves the results.
See also: sub

substitute for (someone or something)

1. To act as a substitute for someone or something. I'm substituting for Eric for the next few days while he recovers in the hospital. Don't believe anyone who tries to convince you that low-fat cooking sprays can substitute for real butter or olive oil and not taste any different.
2. To use, employ, or instruct someone or something to act as a substitute for someone or something else. In this usage, a noun or pronoun is used between "sub" and "for." With a healthy 30-point lead, the coach substituted the rookie for the star quarter back to give him some experience on the field. Let's try substituting an AC motor for the DC one we've been using and see if that improves the results.
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sub for someone or something

to substitute for someone or something. I have to sub for Roger at work this weekend. Will pliers sub for the wrench you wanted?
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sub someone for (someone else)

 and sub something for something else
to substitute someone for someone else or something for something else. I will sub Chuck for Roger for this next play only. We will sub the red ones for the blue ones.
See also: sub

substitute for someone or something

to serve as a replacement for someone or something. I have to substitute for Roger at work this weekend. Do you think that this will substitute for the one you wanted?
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substitute someone for (someone else)

 and substitute something for something else
to exchange someone or something for someone or something else; to replace someone or something with someone or something else. Shall I substitute Fred for Mary in the front office? Please substitute fish for beef on my dinner order.
See also: substitute