This is the 538th most frequent Malay word.
menjaga
"Menjaga" means "to take care of" or "to guard."
Here, 'menjaga' is used to mean 'to guard' or 'to watch over', showing responsibility for maintaining control of an area.
Dia menjaga pintu supaya tiada sesiapa masuk.
He guards the door so that nobody enters.
In this sentence, 'menjaga' means 'to take care of', especially in the context of caring or nurturing someone.
Ibu menjaga anaknya yang masih kecil dengan penuh kasih sayang.
The mother takes care of her young child with full love.
In this context, 'menjaga' refers to 'maintaining' or 'keeping something in a good state', applied here to cleanliness.