The term 'in a while' is used to refer to a period of time that is not immediately, but will occur at some point in the future. The crossword solutions for this term are ONCE (4 letters), ANON (4 letters), SOON (4 letters), LATER (5 letters), and LATERON (7 letters). ONCE refers to an occurrence that happens only one time, ANON means SOON or shortly, SOON implies a short period of time, LATER suggests a more extended period of time, and LATERON implies a much longer period of time.