Seeing that is a phrase used to introduce a statement that explains or supports a previous statement. It is often used to explain why something is true or why something happened. The crossword solutions for the term 'seeing that' are 'SINCE, ' 'aslongas, ' and 'inasmuch.' SINCE is a conjunction used to indicate a cause or reason for something, aslongas is a phrase meaning 'provided that' or 'on condition that, ' and inasmuch is an adverb meaning 'to the extent that.'