Search notes:

Oracle: V$RESERVED_WORDS

v$reserved_words stores a list of words that are reserved keywords in Oracle.

select
  lower(keyword) keyword,
  reserved,
  res_type,
  res_attr,
  res_semi,
  duplicate
from
  v$reserved_words order by keyword;

Error messages related to using reserved words

Using a reserved word as column alias results in an ORA-00923: FROM keyword not found where expected error.

Selecting a column whose name is a semi reserved keyword results in an ORA-00936: missing expression error.