unknown

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When the cells were removed, pigeons struggled to find their way home, pointing to a previously unknown role in navigation.

From Science Daily • May 31, 2026

Gum arabic, a resin that comes from the acacia tree, is as ubiquitous as it is unglamorous, virtually unknown despite being a vital ingredient in hundreds of products.

From Los Angeles Times • May 31, 2026

The phone calls reminded her sister of when she was in prison, as they came from unknown numbers and had to be short and to-the-point.

From BBC • May 30, 2026

The exact number in the latest batch of deportees was unknown, but Meredyth Yoon, a US-based lawyer associated with one of the deportation cases, said they arrived Thursday.

From Barron's • May 30, 2026

And then Roz realized that this type of sea slug was unknown.

From "The Wild Robot Protects" by Peter Brown