This is the 1214th most frequent Japanese word.
高め
"Takame" (高め) means "elevated," "high," or "raised."
In this sentence, '高める' is used as a verb meaning 'to enhance' or 'to heighten.' It indicates improving the level of knowledge.
彼は音楽の知識を高めるために毎日勉強しています。
He studies daily to enhance his knowledge of music.
Here, '高め' is used as an adjective meaning 'somewhat high.' It describes the attribute of the object to convey its moderate height.
この椅子は少し背もたれが高めなので、長時間座っても快適です。
This chair's backrest is slightly high, so it remains comfortable for long periods.
In this context, '高める' again functions as a verb, signifying 'to strengthen or heighten.' It relates to increasing the capability or level of immunity.