gotcha
From Longman Dictionary of Contemporary Englishgotchagot‧cha /ˈɡɒtʃə $ ˈɡɑː-/ interjection 1 CATCHa word meaning ‘I’ve got you’, used when you catch someone or trick them in some way2 UNDERSTANDa word meaning ‘I understand’ ‘Yeah, 5 o’clock, gotcha.'Examples from the Corpusgotcha• Gotcha, Katie! Now I'm gonna tickle you!