Synonym: energy, force, intensity, might, potency, power, vigor. Antonym: impotence, weakness. Similar words: strengthen, length, at length, lengthways, strenuous, seeing that, living thing, trend. Meaning: [streŋθ] 
n. 1. the property of being physically or mentally strong 2. capability in terms of personnel and materiel that affect the capacity to fight a war 3. physical energy or intensity 4. an asset of special worth or utility 5. the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty 6. the amount of energy transmitted (as by acoustic or electromagnetic radiation) 7. capacity to produce strong physiological or chemical effects 8. the condition of financial success 9. permanence by virtue of the power to resist stress or force.
n. 1. the property of being physically or mentally strong 2. capability in terms of personnel and materiel that affect the capacity to fight a war 3. physical energy or intensity 4. an asset of special worth or utility 5. the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty 6. the amount of energy transmitted (as by acoustic or electromagnetic radiation) 7. capacity to produce strong physiological or chemical effects 8. the condition of financial success 9. permanence by virtue of the power to resist stress or force. 
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(91) We understand the strength of feeling against the proposal.
(92) Roland was taken aback by our strength of feeling.
(93) Something gave me the strength to overcome the difficulty.
(94) We must bring the police force up to strength.
(95) What is the strength of the work-force?
(96) He experienced no diminution of his physical strength.
(97) His character is a combination of strength and kindness.
(98) The country's economic strength is declining.
(99) You must eat to keep your strength up.
(100) His strength did not avail against the hostile onslaught.
(101) He could feel his strength ebbing .
(102) Drinks would be taxed according to their alcoholic strength.
(103) These wines vary in strength between 11 and 15.
(104) She has a remarkable inner strength.
(105) She summoned up every ounce of strength she possessed.
(106) His strength of will enabled him to persist.
(107) The old lady's strength is draining away.
(108) His regiments were considerably under strength.
(109) Officers were terrified of his superhuman strength.
(110) Peak updraft strength is slightly enhanced with hodograph curvature.
(111) The long illness had wasted the old man's strength.
(112) The strength of his argument convinced the waverers.
(113) The exercise obviously will improve strength and endurance.
(114) Pacifist movements gathered strength in Norway.
(115) He preached a gospel of military strength.
(116) This view has recently gathered strength .
(117) She has such strength of character.
(118) Give us strength that we may stand against them.
(119) I'm ready to match my strength against yours.
(120) Somehow Debbie maintained an inner reserve of strength.
More similar words: strengthen, length, at length, lengthways, strenuous, seeing that, living thing, trend, entrench, trenchant, stress, streak, stream, strewn, street, stretch, entrenched, stretchy, distress, mistreat, stretch out, stressed, entrepreneur, stressful, stretching, mainstream, streamline, lacklustre, streamlined, obstreperous.