This is the 5635th most frequent Korean word.
박형준
"박형준" is a Korean name commonly used for males. It does not have a specific meaning unless broken into individual characters (박, 형, 준).
In this sentence, '박형준' is used as a proper noun, representing a person's name.
박형준은 축구를 잘합니다.
Park Hyungjun is good at soccer.
Here, '박형준' identifies the individual with whom the action of having lunch was associated.
나는 어제 박형준과 점심을 먹었습니다.
I had lunch with Park Hyungjun yesterday.
In this usage, '박형준' specifies the individual being introduced as the new team member.