v. ex·tend·ed, ex·tend·ing, ex·tends
a. To cause (something) to be longer, wider, or cover more area: extended the subway line into the next town.
b. To enlarge the scope or effect of: research that extended our knowledge of the universe.
c. To cause (something) to last longer: extended our visit by a day.
d. To prolong the time allowed for payment of: extend a loan for three more months.
e. To put off; postpone: extended the deadline by a week.
a. To present; offer: extend one's greetings.
b. To make available; provide: extend credit to qualified purchasers.
3. To open or straighten (something) out; unbend: extended the legs of the folding table.
4. To increase in quantity or bulk by adding a cheaper substance: used rice or pasta to extend leftover casseroles.
a. To exert (oneself) vigorously or to full capacity: Few mountain climbers have extended themselves as those two have.
b. To cause to move at full gallop. Used of a horse.
6. Chiefly British
a. To appraise or assess; value.
b. To seize or make a levy on for the purpose of settling a debt.
To be or become long, large, or comprehensive: influence that extended to other continents; table legs that extend by unscrewing.
[Middle English extenden, from Old French extendre, from Latin extendere : ex-, ex- + tendere, to stretch; see ten- in the Appendix of Indo-European roots.]
ex·tend′a·bili·ty, ex·tend′i·bili·ty n.
ex·tenda·ble, ex·tendi·ble adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.