Within the Polynesian branch, Hawaiian is most closely related to:
* Tahitian: This language, spoken in French Polynesia, is considered to be Hawaiian's closest relative.
* Maori: Spoken in New Zealand, Maori is another close relative with significant similarities in vocabulary and grammar.
* Samoan: Also spoken in Polynesia, Samoan shares a common ancestor with Hawaiian and has noticeable resemblances.
While these languages share a common root, they have evolved independently for centuries, leading to distinct differences in pronunciation, grammar, and vocabulary.
However, a speaker of one of these languages could potentially understand some basic words and phrases in Hawaiian with some effort.