愛あい用よう

あ

い

よ

う

Common wordJLPTN1Freq.FrequencyTop 10,000

愛用する · noun or participle which takes 'suru'

Meanings

noun which may take the genitive case particle 'no', noun or participle which takes 'suru', transitive verb

favorite; habitually used

Describes something one uses regularly and is fond of. Often used in the pattern 愛用の + noun or 愛用する.

〈物もの〉を愛あい用ようするto habitually use/favor a particular item
彼かの女じょはこのブランドのバッグを長なが年ねん愛あい用ようしている。
She has been using bags from this brand for years as her favorites.
愛あい用ようの〈物もの〉one's favorite, regularly-used (item)
これは父ちちの愛あい用ようの腕うで時計どけいです。
This is my father's favorite watch, which he wears all the time.

お気きに入いりN3
お気に入り is a casual word for something you like, while 愛用 specifically implies you use the item regularly and have grown attached to it through use.
常じょう用ようN1
常用 simply means habitual or regular use (e.g. of medicine or a word) without any implied fondness, whereas 愛用 adds a sense of affection for the item.
専せん用ようN1
専用 (sense of using only one brand) implies deliberate exclusivity, while 愛用 simply means habitually using and liking a product without necessarily excluding others.

愛あい好こう
愛好 means to be fond of an activity or hobby (e.g. 音楽を愛好する), while 愛用 refers to habitually using a specific object or product.
愛あい着ちゃくN1
愛着 describes emotional attachment to something (which may not even be used regularly), while 愛用 specifically means using an item often out of preference.

Compound of 愛 (love) and 用 (use). The meaning 'to use habitually with affection' is transparent from the kanji.