This is the 2710th most frequent Japanese word.
直
"直" means "straight," "direct," or "honest."
直 here is used as a verb, '直す,' meaning 'to correct.'
問題を直す必要があります。
It is necessary to correct the problem.
直 is used as an adverb '直に,' meaning 'directly.'
彼の言葉は心に直に響きました。
His words directly resonated with the heart.
直 is used as a verb, '直る,' meaning 'to be repaired.'