  The objective of this paper is to extend certain properties observed in
$d$-ideals of rings and $d$-elements of frames to Baer elements in
multiplicative lattices introduced in D. D. Anderson, C. Jayaram, and P. A.
Phiri, Baer lattices, \textit{Acta Sci. Math. (Szeged)}, 59 (1994), 61--74.
Additionally, we present results concerning these elements that have not been
addressed in the study of $d$-ideals of rings. Furthermore, we introduce Baer
closures and explore Baer maximal, prime, semiprime, and meet-irreducible
elements.
