synonyms, antonyms, definitions, examples & translations of strengthen in English

English Online Dictionary. What means strengthen‎? What does strengthen mean?

From rare Middle English strengthenen (14th c.), from earlier strengthen (12th c.), where -en is the infinitive ending. Probably the original form was reinterpreted as strength +‎ -en around the time when the infinitive ending was being apocopated in late Middle English.

  • IPA(key): /ˈstɹɛŋ(k)θən/, /ˈstɹɛnθən/, /ˈʃt͡ʃɹeɪŋ(k)θən/
  • Rhymes: -ɛŋkθən

strengthen (third-person singular simple present strengthens, present participle strengthening, simple past and past participle strengthened)

  1. (transitive) To make strong or stronger; to add strength to; to increase the strength of; to fortify.
  2. (transitive) To empower; to give moral strength to; to encourage; to enhearten.
  3. (transitive) To augment; to improve; to intensify.
  4. (transitive) To reinforce, to add to, to support (someone or something)
  5. (transitive) To substantiate; to corroborate (a belief, argument, etc.)
  6. (intransitive) To grow strong or stronger.
  • (to make strong or stronger): See also Thesaurus:strengthen
  • (to augment): See also Thesaurus:augment
  • weaken
  • atrophy
  • strengthener
  • strengthening plaster
  • “strengthen”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
  • strenkþen, strengþen, strengþe, strengþi, strengthe, strenght, strenthe, streynght, streynthyn, streyngthe
  • (early) strengðden, strengþin, strencþen

From strengthe +‎ -en (infinitival suffix).

  • IPA(key): /ˈstrɛnkθən/, /ˈstrɛnɡðən/
  • (dialectal) IPA(key): /ˈstrɛnθən/, /ˈstrɛi̯nθən/


  1. to strengthen, fortify (increase the strength of)
  2. to empower, to augment (increase the potency or severity of)
  3. to enhearten, to encourage (increase the morale of)
  4. to assist, to support (someone or something)
  5. to substantiate; to corroborate (a belief, argument, etc.)
  6. to approve or validate (a document).
  7. to endeavour; to rouse oneself.
    (Can we find and add a quotation of Chaucer to this entry?)
  • English: strength
  • “strengthen, v.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.

share is an Free English Dictionary containing information about the meaning, synonyms, antonyms, definitions, translations, etymology and more.

Related Words

Browse the English Dictionary

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z


This article based on an article on Wiktionary. The list of authors can be seen in the page history there. The original work has been modified. This article is distributed under the terms of this license.