fertilize

verb

fer·​til·​ize ˈfər-tə-ˌlīz How to pronounce fertilize (audio)
fertilized; fertilizing
Synonyms of fertilizenext

transitive verb

: to make fertile: such as
a
: to apply a fertilizer to
fertilize land
b
: to cause the fertilization of
fertilizable adjective

Examples of fertilize in a Sentence

A single sperm fertilizes an egg. Bees fertilize plants as they collect nectar from flowers. He fertilizes the lawn every year. The soil is so rich there is no need to fertilize.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Its heliacal rising would herald the annual flooding of the Nile Valley, the waters re-fertilizing the fields with silt. Joe Rao, Space.com, 23 Jan. 2026 Avoid using products that contain urea, which can cause root burn, and don’t fertilize in winter when these plants aren’t actively growing. Lauren Landers, Better Homes & Gardens, 22 Jan. 2026 As active growth begins, fertilize your Christmas cactus every month. Karen Brewer Grossman, Southern Living, 22 Jan. 2026 The hope is that females, which only mate once in their short lives, will mate with sterile males, resulting in eggs that are never fertilized. Alix Martichoux, The Hill, 21 Jan. 2026 See All Example Sentences for fertilize

Word History

First Known Use

1621, in the meaning defined above

Time Traveler
The first known use of fertilize was in 1621

Browse Nearby Words

Cite this Entry

“Fertilize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fertilize. Accessed 28 Jan. 2026.

Kids Definition

fertilize

verb
fer·​til·​ize ˈfərt-ᵊl-ˌīz How to pronounce fertilize (audio)
fertilized; fertilizing
: to make fertile: as
a
: to cause the fertilization of
also : to unite with in the process of fertilization
a sperm fertilizes an egg
b
: to apply a fertilizer to
fertilize land

More from Merriam-Webster on fertilize

Last Updated: - Updated example sentences
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