The term 'as soon as' can be broken down into four crossword solutions: ANON (4 letters), ONCE (4 letters), ALREADY (7 letters), and WHEN (4 letters). ANON is an adverb meaning immediately or without delay. ONCE is an adverb meaning at one time or on one occasion. ALREADY is an adverb meaning prior to a specified or implied time. Finally, WHEN is a conjunction used to refer to the time at which an event takes place. All four of these words are used to indicate that something will happen without delay or immediately after another event.