All Words
Wednesday, May 20, 2026
Word of the Day

ossify

verb

To turn into bone or bony tissue; to become rigid or inflexible in habits, attitudes, or beliefs. Describes both physical and metaphorical hardening.

Intermediate - Known to most educated speakers

Etymology

From Latin "os" (bone) + "-fy" (to make), through French "ossifier." The medical meaning came first, with the figurative meaning developing in the 19th century.

Examples in Use

  • 1.

    "Cartilage gradually ossifies into bone as children grow."

  • 2.

    "The once-innovative company had ossified into a bureaucratic giant."

  • 3.

    "His political views ossified early and never changed despite new evidence."

Related Vocabulary

Synonyms

hardenstiffensolidifypetrify

Related Words

calcifyfossilizerigidifyfreeze

Fun Fact

Human babies are born with about 270 bones, but many ossify and fuse together as they grow. Adults typically have only 206 bones. This process continues until around age 25.

Word Game Tips

Letters: 6 letters (O, S, S, I, F, Y)

Scrabble Value: 12 points

Tip: The letter pattern in "OSSIFY" appears in many related words.

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