Quine makes this claim at two levels: the level of whole sentences, and the level of subsentential expressions. At the level of subsentential expressions the claim is known as the thesis of the inscrutability of reference.

The baby boomlet was a period marked by increases in the number of women of childbearing age and increases in fertility rates of those women.

The new, pagoda-like signalbox at Hackney Downs.

He ate a third of the pie. Divided by two-thirds.