改 — meaning in English

gǎi

English meaning

adjust verb To change something slightly so it works better or fits new circumstances.
amend verb To make formal changes to a document, law, or agreement in order to correct or improve it.
better adj Of higher quality, more suitable, or more desirable than something else being compared.
double adj Twice the usual size, amount, or number, or consisting of two matching parts.
enhance verb To improve the quality, value, or appeal of something.
improve verb To make something better in quality, value, or condition.
instead adv In place of something else already mentioned; as a substitute.
proofread verb To carefully check a piece of writing for spelling, grammar, and other errors.
rather than conjunction Used to introduce the option that is not being chosen, in place of another that is.
rectify verb To correct a mistake or fix a problem.
replace verb To put something new in the place of something old, broken, or lost.
surrogate noun A person or thing that substitutes for another.

改 is used for these senses in English:

adjust (transitive) To improve or rectify.
amend (transitive) To make better; improve.
better (transitive) To give advantage to; to support; to advance the interest of.
double To be the double of; to exceed by twofold; to contain or be worth twice as much as.
enhance To improve something by adding features.
improve (transitive) To make (something) better; to increase the value or productivity (of something).
in lieu of Instead of; in place of.
instead In the place of something (usually mentioned earlier); as a substitute or alternative.