frequently / tie

frequent

frequency

to use / to employ / to make use of, to apply / to spend

use one thing for many purposes / work someone hard

to use one's head

a letter, a character (symbol for a sound or a word) / (linguistics) script, writing system / (specific to Japanese) a written mora, a kana / writing in general, written words

a letter or character (symbol for a sound or a word) / (linguistics) script, writing system / (specific to Japanese) a written mora, a kana / writing in general, written words

the Cyrillic script

(computing) ghost character (kanji included in JIS X 0208 but of unknown origin)