Spinless bosons embedded in a vector Duffin-Kemmer-Petiau oscillator

► Nonminimal vector interactions in the Duffin-Kemmer-Petiau (DKP) formalism are discussed. ► The space component of the nonminimal vector linear potential plays a crucial role for the confinement of bosons. ► The exact solutions for the vector DKP oscillator are presented in a closed form.