Frayed is the past tense of fray, or is used to describe something that is frayed.
You would describe the weather as freezing if it is extremely cold.
Something is fresh if it is new. This might mean it just arrived (a meal fresh from the oven), it was just made, or it just happened.
Foods like fruit and vegetables are described as fresh if they look like they have been freshly made or picked.
Someone is fussy if they get overly concerned about the details of things, or are very particular about what choices they make. Toddlers are often fussy eaters.
