Noun approval has 4 senses
  1. blessing, approval, approving - the formal act of giving approval; "he gave the project his blessing"; "his decision merited the approval of any sensible person"
    --1 is a kind of support
    Antonyms: disapproval
    --1 has particulars:
     adoption, acceptance, acceptation, espousal; backing, backup, championship, patronage; admiration, appreciation; reward, reinforcement
    Derived forms: verb approbate1, verb approve1
  2. approval - a feeling of liking something or someone good; "although she fussed at them, she secretly viewed all her children with approval"
    --2 is a kind of
    Antonyms: disapproval
    --2 has particulars: favor, favour; approbation
    Derived form: verb approve2
  3. approval, favorable reception, favourable reception - acceptance as satisfactory; "he bought it on approval"
    --3 is a kind of acceptance
    --3 has particulars: appro
    Derived form: verb approbate1
  4. approval, commendation - a message expressing a favorable opinion; "words of approval seldom passed his lips"
    --4 is a kind of message, content, subject matter, substance
    Antonyms: disapproval
    --4 has particulars:
     approbation; sanction, countenance, endorsement, indorsement, warrant, imprimatur; recognition, credit; connivance, secret approval, tacit consent; permission; encouragement; acclaim, acclamation, plaudits, plaudit, eclat; applause, hand clapping, clapping; cheer; praise, congratulations, kudos; tribute, testimonial; subscription; ratification, confirmation
    Derived form: verb approbate1