第だい一いち位いMeanings1nounfirst place; first rankUsed in rankings, competitions, and ordered lists to indicate the top position.彼かれは大たい会かいで第だい一いち位いになった。He took first place in the tournament.この商しょう品ひんは売うり上あげ第だい一いち位いです。This product is number one in sales.