しand, besides, moreover, what's more, not only ... but also, because, since, the thing is, for one thing

Common

1. Particle, Conjunction

   1. 1.

      and, besides, moreover, what's more, not only ... but also

   2. 2.

      because, since

      usu. indicates one of several reasons

   3. 3.

      the thing is, for one thing

      at sentence end; gives reason for an unstated but deducible conclusion