The Standard Malay for 'baby' is bayi. However, this word is never used in Brunei, as bayi means 'pig' in Brunei Malay. Instead, even in official documents, the local alternative anak damit ('little child') is used, as in this newspaper headline from page 3 of the Media Permata of 21 October 2013:
The headline can be translated as:
Mother's milk is best for babies.
This is the only case I know where a Standard Malay word is avoided in official publications in Brunei.