This is the 4169th most frequent Japanese word.
一味
"一味" means "one group" or "one faction"; it can also mean "same taste" or "a hint/trace" depending on context.
In this sentence, 一味 refers to adding a small detail or element (flavor) to enhance something.
この料理には少し一味加えるとさらにおいしくなる。
Adding a touch of seasoning to this dish will make it even more delicious.
Here, 一味 conveys the sense of something being distinct or unique.
彼は一味違うアイデアを持っている。
He has a uniquely different idea.
In this context, 一味 refers to a group or gang associated with an activity or characteristic.