This is the 525th most frequent Malay word.
ibu
Mother.
In this sentence, 'ibu' refers to one's biological or maternal figure, mother.
Ibu sedang memasak di dapur.
Mother is cooking in the kitchen.
Here, 'ibu' is part of the noun phrase 'ibu kota,' which translates to 'capital city,' a fixed term in Malay.
Ibu kota Malaysia ialah Kuala Lumpur.
The capital city of Malaysia is Kuala Lumpur.
In this example, 'ibu' is used in the term 'akar ibu,' describing the primary or main root of a plant.