shirabe.org
1)
#1,025
おお
おお
Meaning
    1. ①
      oh!; good heavens!
      occ. written 応
    2. ②
      ugh!; oh no!
    3. ③
      ah!; the penny drops!
    4. ④
      yes!; okay!
Forms
4)
#943
Common N1
こたえ
こたえ
Meaning
    1. ①
      answer; reply; response
      Carol refused; in other words her answer was "no."
    2. ②
      answer; solution; result
      Her answer was incorrect.
Forms
5)
#1,136

Inflections of 応援

Common N2
おうえん
Meaning
    1. ①
      aid; assistance; help; support; reinforcement
      I will stand by you whatever happens.
    2. ②
      cheering; rooting (for); support
      She cheered for her favorite horse.
Forms
6)
#1,895

Inflections of 応える

Common
こたえる
こたえる
Meaning
    1. ①
      to respond; to answer; to meet (e.g. demands, expectations)
      occ. written as 報える
      You ought to live up to your parents' hopes.
    2. ②
      to affect; to take a toll; to strike home; to have an effect on; to be hard on someone (e.g. heat, cold, work, illness, etc.); to be a strain
      occ. written as 徹える
      It is beginning to tell on him.
Forms
9)
#7,334

Inflections of 応募

Common N1
おうぼ
おうぼ
Meaning
    1. application; subscription; entry (competition, raffle, etc.); enlistment
      When the school needed a new teacher, he applied for the position.
Forms
More words

Results