General Definition:
1. The end point or highest point of some tall thin object, or any action or any thing directly or indirectly associated with this.
As a Noun:
1. A specific item or a particular idea or subject.
2. The end of something that is long and thin. English = tip.
As a Verb or Adjective:
1. To be precise and exact and only about one special thing or subject. English = (be) specific, (be) particular.
2. To state something clearly and precisely. English = specify.