  We have searched for proton decays into a charged antilepton ($e^+$, $\mu^+$)
plus a meson ($\eta$, $\rho^0$, $\omega$) and neutron decays into a charged
antilepton ($e^+$, $\mu^+$) plus a meson ($\pi^-$, $\rho^-$) using
Super-Kamiokande (SK) I-IV data, corresponding to 0.316 megaton$\cdot$years of
exposure. This measurement updates the previous published result by using 2.26
times more data and improved analysis methods. No significant evidence for
nucleon decay has been observed and lower limits on the partial lifetime of the
nucleon are obtained. The limits range from 3$\times$10$^{31}$ to
1$\times$10$^{34}$ years at 90% confidence level, depending on the decay mode.
