noun-modifying (irregular)
long-term usability; designed for extended use
Wasei-eigo term used especially in product marketing for items that can be used over many years or through a child's growth stages, such as car seats, furniture, or gear.
wasei-eigo (Japanese-coined English), from long use
このチャイルドシートはロングユース設計で、新生児から7歳頃まで使えます。
This child car seat is designed for long-term use and can be used from newborn to around age 7.
ロングユースできる家具を選ぶと、長い目で見て経済的です。
Choosing furniture that can be used for a long time is economical in the long run.
Wasei-eigo from English 'long' and 'use'. Not a direct borrowing from an existing English phrase.