You can choose to ignore all or only specific words or phrases from Spell Check.
Ignoring all Spell Checks The Ignore all list acts like a dictionary. However, unlike a dictionary, the Ignore all list is cleared when the application starts.
Ignoring specific Spell Checks During spell checking, you can ignore certain types of segments or elements within a segment, such as an email address. For example, locked segments are automatically excluded from spell checking.
Clearing ignored Spell Checks manually The Ignore All list is cleared when Trados Studio starts. You can also choose to manually delete the list of the terms from the Ignore All list.