A kind of higher-order Boussinesq equation is studied in this work. Based on
the Bell polynomials theories, bilinear representations of the equation are derived, and
diverse interaction solutions are constructed through Hirota’s bilinear method. These
include interaction solutions characterized by hyperbolic cosine and cosine functions,
as well as interactions between lump and soliton solutions. In addition, generalized
bilinear operators are used in order to construct a new higher-order Boussinesq-like
equation, while lump and breather solutions are also developed utilizing Hirota’s bilinear technique. For the various explicit solutions obtained in this work, several of them
are considered to selected particular values for the relevant parameters in order to plot
different kind of three-dimensional surfaces with associated two-dimensional density
profiles to give a comprehensive understanding of the evolution for various solutions.