This is the 9991st most frequent Japanese word.
車いす
Wheelchair.
In this sentence, 車いす ('kuruma isu') is used to denote a wheelchair as a piece of equipment needed by someone for mobility assistance.
彼は車いすを必要としています。
He needs a wheelchair.
Here, 車いす is used to signify a mode of transportation or mobility.
車いすで移動することは便利です。
Traveling by wheelchair is convenient.
車いす用 ('kuruma isu-you') refers specifically to wheelchair accessibility or accommodations.