The usefulness of the cliched clichÃ©d phrase day and age is, questionable but it makes sense as a redundant way of saying era or just. Age day in, age on the other, hand is a nonsensical eggcorn derived from a mishearing of day and. ageLos Angeles Times] Hopefully, in this day and age, everyone sees taniwha in the same fairy tale realm as goblins, elves and fairies. [New Zealand Herald] Part of the controversy, inevitably perhaps, concerns Miss Monroe, who, in this day and age of diminished glamour, remains an indubitable star. [Guardian].
The adjective determined means devoted or dedicated to a cause or activity. (e.g. He was determined to succeed. / They were fighting a determined enemy.) The past tense determined (verb to determine) can mean: * discovered by experiment or analysis. (e.g. They determined the cause of the spill.)
If you determine something, you figure it out or settle a question, like when, after checking paws and hands, you determine that it's not the dog that ate your candy stash, but your kid sister. Determine comes from the Latin for bring to a close, and when you determine something, you have closed all the questions you have about it and are quite sure you know the answer. If you become a detective, you'll have to determine who did the crime. After working through a mathematical problem, you determine the value of X. Determine can also mean influence. Your childhood spent in your grandmother's delightful kitchen might have determined your future career as a baker.