What does the word "moai" mean?

Yes, the Easter Island statues.

"Moˀai" are monolithic human figures carved from rock on Rapa Nui / Easter Island, mostly between 1250 and 1500 CE. Nearly half are still at Rano Raraku the main Moai quarry, but hundreds were transported from there and set on Ahu (platforms) which were mostly at the islands perimeter. Almost all have overly large heads three fifths the size of their body. The Moai are the “living faces” (aringa ora) and representations of chiefly, deified ancestors. Sitting on their Ahus with their backs to the sea, these statues were still gazing across their clan lands when European first visited the island, but most were then cast down during conflict between different clans on the island."

Moai or mo‘ai (pronounced /ˈmoʊ.аɪ/) are monolithic human figures carved from rock on the Polynesian island of Rapa Nui (Easter Island) between 1250 and 1500 CE. Nearly half are still at Rano Raraku, the main moai quarry, but hundreds were transported from there and set on stone platforms called Ahu around the island's perimeter. Almost all moai have overly large heads three-fifths the size of their bodies. The moai are chiefly the 'living faces' (aringa ora) of deified ancestors (aringa ora ata tepuna). The statues still gazed inland across their clan lands when Europeans first visited the island, but most would be cast down during later conflicts between clans.

The statues' production and transportation is considered a remarkable intellectual, creative, and physical feat. The tallest moai erected, called Paro, was almost 10 metres (33 ft) high and weighed 75 tonnes; the heaviest erected was a shorter but squatter moai at Ahu Tongariki, weighing 86 tons; and one unfinished sculpture, if completed, would have been approximately 21 metres (69 ft) tall with a weight of about 270 tons.