invalid1
  
  
	      			KK: [ˈɪnvǝlɪd]
	      			DJ: [ˈinvǝliːd]
  
    n.
    
      - 病弱的人,病人;殘疾者;傷殘退役軍人[C]
a.
    
      - 病弱的,有病的![]() our  invalid mother 我們體弱多病的母親 
- 供病人用的![]() 
 
  辨析
  
 
  
    
invalid2
  
  
	      			KK: [ˈɪnvǝlɪd]
	      			DJ: [ˈinvǝliːd]
  
    vt.
    
      - 使病弱,使傷殘![]() The injury  invalided him for life 那傷使他終生殘廢。 
- 【主英】(因病或傷)使退役[H]![]() 
 
 
  
    
invalid3
  
  
	      			KK: [ɪnˈvælɪd]
	      			DJ: [inˈvælid]
  
 invalid1
 
/
ˈɪnvəlɪd/
n.
 a person made weak or disabled by illness or injury.
v.
 (invalids, invaliding, invalided)
 remove (someone) from active military service because of injury or illness. 
▸disable by injury or illness.
Derivative
Etymology
C17 (as adj. in the sense ‘infirm or disabled’): a special sense of invalid2, with a change of pronunc.
invalid2
 
/
ɪnˈvalɪd/
adj.
  - not valid or officially recognized.
- not true because based on erroneous information or unsound reasoning.
Derivative
Etymology
C16 (earlier than valid): from L. invalidus, from in- ‘not’ + validus (see valid).