Injin
Injin wannan kalmar na nufin duk wani abu da ake amfani dashi wajen samun sauƙin yin aiki wanda idan da ace mutum zai yi aikin zai ɗau lokaci bai gama aikin ba.
A turance kuma ana kiranshi da suna Machine. Injin ya rabu kala kala. Akwai wanda ake aiki gona, akwai na duba lafiyar ɗan adam, akwai na niƙa, akwai na gina gine, akwai na haɗa takalmi da daisauransu.

Amfanin Inji 

 Ana amfani dashi wajen samun sauƙin aiki.
 Ana amfani dashi wajen yin aiki batare da an samu kuskure ba.

Misali 

 Mallaminsu ya siya injin ɗin huɗa don amfani gona
 Mai aikin ƙuli tasiya injin ɗin yin tunkuza.

Manazarta