He seemed eighteenish at first, but he was actually in his mid-twenties.

Let's stick with the eightish we agreed on and adjust if needed.

The philosopher argued that the eightfoldness of the ritual signified a complete cosmological order.

To ensure equal shares, she cut the pie into eightieths for the school's anniversary celebration.

After the patent was approved, the startup's valuation rose eighteenfold within three years.

The study reported an eighteenfold increase in renewable energy adoption over the past decade.

The museum exhibited a rare eightling of rutile, its eight individuals radiating like a tiny metallic star.

In the children's book, eightlings danced around the moonlit pond every midsummer night.

Across the district, the eighth grades organized a charity drive for the homeless.

The archivist labeled the files according to their order, and the eighteenths were placed in a separate folder.