Hebrew and Greek Strong's Dictionary with all the definitions plus combined with every place that word is used in the definitions.
Complete index of every word used in both the Hebrew and Greek Strong's Dictionary in English Word order.
Hebrew and Greek Expanded Dictionary
fifteenth 4003 - pentekaidekatos {pen-tek-ahee-ded'-at-os}; from 4002 and 2532 and 1182; five and tenth: -- {fifteenth}.