This is the 88th most frequent Malay word.
air
Water.
In this sentence, 'air' refers to water, a common meaning of the word.
Air ini sangat jernih.
This water is very clear.
In this context, 'air mata' translates to 'teardrop' or 'tear', showing the word composite usage.
Dia suka melihat air mata yang keluar saat bahagia.
She likes to see tears that appear when happy.
Here, 'air' is used poetically to refer to air or atmosphere, though more commonly 'udara' is used for 'air' in Malay.