英和和英

in lieu of

a replacement

to ask for a second help

have another [a second] helping

a substitute

appoint as a substitute

to be able to do something on behalf of a person

Bring another bottle!

the act of fulfilling another person's duty

an alternative plan

to substitute

a person who substitutes

a substitution for something

substitute goods

the action of making someone act as a substitute for something

supply the place of…

to be substituted

to allow a person to take the role of another

Give me this instead.

a thing used for a time instead of the next thing

Would you like another helping?

One thing serves as a substitute for another―serves for another―does duty for another.

to substitute something

to serve for―do duty for―something

Is it proper to ask for a second help?

instead of making fun of the DJ

the action of making do with a makeshift

a person whose shoulder is leant on by another person, rather than that person using a cane or crutch to lean on

exchangeability by virtue of being replaceable

a proposal or a plan that is an alternative to something else