This is the 6999th most frequent Chinese word.
甄
"甄" means "to discern," "to select," or "to examine."
甄别 in this sentence means to discern or differentiate; the word '甄' contributes the meaning of selecting or recognizing carefully.
此款软件能够甄别真伪。
This software can identify authenticity.
甄量 in this sentence is used to mean to evaluate or consider; the word '甄' adds the component of careful weighing or judging.
她的行为令人无法甄量其真实意图。
Her actions make it hard to fathom her true intentions.
甄选 in this sentence signifies selection or choosing among options; '甄' indicates the action is done with deliberation and care.