One of many many Japanese words for 'normal.' The nuance of いっぱんてき is ordinary, non-special - as opposed to a member of a special group of people of things. 一般的な人 means, an average person. As in, 'an average person is not allowed in this Yakuza bar.'
一般 (generally, commonly) + 的 (motivation / '-al')
= 一般的 (ordinary)
一日
( ついたち )
first day of the month
(FP)
一 (one) + 日 (sun, day)
= 一日 (first day of the month)
一番
( いちばん )
the best! Number one!
(NEO)
一 (one) + 番 (number)
= 一番 (number one!)