killer

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.

Walmart has been a killer stock for the better part of this decade, but it’s now struggling to keep pace with its biggest rivals and the overall market.

From MarketWatch • Jun. 4, 2026

For decades, scientists believed that MHC class I molecules primarily communicated with CD8+ T cells, often called "killer" T cells, while MHC class II molecules activated CD4+ T cells, commonly known as "helper" T cells.

From Science Daily • Jun. 4, 2026

"It could be PC, but we are also looking at AI glasses," although neither can be seen as a killer device in the industry at this point, Omdia's Su said.

From Barron's • Jun. 1, 2026

A new species of "killer fungus" has been discovered in Britain that destroys an aggressively invasive plant, raising hopes that decimated native habitats could be restored.

From BBC • May 30, 2026

Fact: Every great scientist knows that an unproven theory isn’t exactly science, but the idea that Sir Fig Newton would live a long, healthy life with the silent cat killer was about to come true.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas