de·ceit 
/dɪˈsi:t/ noun
plural de·ceits /dɪˈsi:t/ noun : dishonest behavior : behavior that is meant to fool or trick someone [noncount] ▪ He achieved his goals through lies and (a web of) deceit. [=deception] ▪ I began to suspect them of deceit. [=deceitfulness] [count] ▪ We were angry when we discovered that her excuse was really a deceit. [=lie]
