structural:expansion
Morphology

Most Austronesian languages are agglutinative languages with a relatively high number of affixes, and clear morpheme boundaries. Most affixes are prefixes (Malay and Indonesian ber-jalan 'walk' < jalan 'road'), with a smaller number of suffixes (Tagalog titis-án 'ashtray' < títis 'ash') and infixes (Roviana t<in>avete 'work (noun)' < tavete 'work (verb)').

Reduplication is commonly employed in Austronesian languages. This includes full reduplication (Malay and Indonesian anak-anak 'children' < anak 'child'; Karo Batak nipe-nipe 'caterpillar' < nipe 'snake') or partial reduplication (Agta taktakki 'legs' < takki 'leg', at-atu 'puppy' < atu 'dog').