strengthen

To strengthen is to make something stronger! Rarr. You can strengthen your muscles by working out, or strengthen your brain by learning new words.

Anytime you strengthen something, you're making it more resistant, vigorous, or tough. Taking vitamins can strengthen your immune system so you don't get sick. Lifting weights will strengthen your muscles. A powerful lock will strengthen a door. On computers, a reliable firewall will strengthen your virus protection. If something is weak, it needs to be strengthened. Congrats! You just strengthened your vocabulary by checking out this definition!

Definitions of strengthen
  1. verb
    make strong or stronger
    “This exercise will strengthen your upper body”
    strengthen the relations between the two countries”
    synonyms: beef up, fortify
    see moresee less
    Antonyms:
    weaken
    lessen the strength of
    types:
    show 17 types...
    hide 17 types...
    vitalise, vitalize
    make more lively or vigorous
    ruggedise, ruggedize
    produce in a version designed to withstand rough usage
    substantiate
    solidify, firm, or strengthen
    restrengthen
    make strong again
    brace up, undergird
    make secure underneath
    confirm
    make more firm
    reenforce, reinforce
    make stronger
    buttress
    make stronger or defensible
    brace, stabilise, stabilize, steady
    support or hold steady and make steadfast, with or as if with a brace
    batten
    secure with battens
    batten, batten down, secure
    furnish with battens
    buttress
    reinforce with a buttress
    line
    reinforce with fabric
    bolster, bolster up
    support and strengthen
    ballast
    make steady with a ballast
    guy
    steady or support with a guy wire or cable
    mine
    lay mines
    type of:
    alter, change, modify
    cause to change; make different; cause a transformation
  2. verb
    gain strength
    “His body strengthened
    see moresee less
    Antonyms:
    weaken
    become weaker
    types:
    show 12 types...
    hide 12 types...
    consolidate
    make firm or secure; strengthen
    proof
    make resistant (to harm)
    back
    strengthen by providing with a back or backing
    sandbag
    protect or strengthen with sandbags; stop up
    toughen
    make tough or tougher
    bombproof
    make safe against bombings
    bulletproof
    make bulletproof
    child-proof, childproof
    make safe against children
    foolproof, goof-proof, goofproof
    proof against human misuse or error
    fireproof
    make resistant to fire
    weatherproof
    make resistant to bad weather
    harden, season
    make fit
    type of:
    change
    undergo a change; become different in essence; losing one's or its original nature
  3. verb
    give a healthy elasticity to
    synonyms: tone, tone up
    see moresee less
    type of:
    exercise, work out
    do physical exercise
Word Family