The word "clob" does not have any direct synonyms. However, the term "clog" may be used in place of "clob" in certain contexts. Clog is an English word that means to block or obstruct a fluid or gas flow. In the computer programming context, clog refers to a software glitch that causes a program to stop working. Other possible synonyms for clob could include "block," "brick," or "jam." These words could be used in place of clob to describe an obstruction or impediment in a program or process. It is important to note that in the computer programming context, the term "clob" refers specifically to a piece of data stored in a database.