Respuesta :
Answer:
Explanation:
a barrier or manned entrance, typically at a border, where travelers are subject to security checks.
a place along the route of a long-distance race where the time for each competitor is recorded.
a location whose exact position can be verified visually or electronically, used by pilots to aid navigation.
Answer: Border or Achievement
Explanation:
1: Like when you're going on a long flight and you make it half-way there, or like when you reach the 1st checkpoint of a race.
2: Like when you are growing. First when you start schooling, then puberty, starting college, maturity, growing in all your teeth ect;
hopefully you understand now.