This list will be updated as I learn more and use more terms.
Baruch Hashem, or BH: Thank G-d.
See also https://www.chabad.org/library/article_cdo/aid/1405289/jewish/Bitachon.htm
See also https://www.chabad.org/library/article_cdo/aid/1398519/jewish/Emunah.htm
Gd, or G-d: See https://www.chabad.org/library/article_cdo/aid/166899/jewish/Why-Dont-You-Spell-Out-G-ds-Name.htm
Hashem: Hebrew for “the Name” (the name of G-d), how frum Jews refer to G-d. See http://www.aish.com/sp/ph/69739762.html