“Judgment” is the preferred spelling in comparison with “Judgement” in American standard English.
In American standard English, unlike British English, it’s not all right to use alright in place of all right.
Those moments when you just can’t seem to recall a word is mostly called as ‘tip-of-the-tongue syndrome (or phenomenon)’.
Words “Lethonomia” and “Lethologica” mean the inability to remember the right name and the right word respectively.
These two words derive from the river Lethe in Hades of Greek Mythology, a river that was thought to cause oblivion or forgetfulness of the past.
Sadly, there are no such thing as a true synonym of a word.