잡다 is pinning down whatever is moving

Where the picture shows up in 잡다

1. 1

   grip the handle

   손잡이 꽉 잡으세요.

   son-ja-bi kkwak ja-beu-se-yo

   Hold on to the handrail tightly.

2. 2

   catch what's passing

   여기서는 택시 잡기가 힘들어요.

   yeo-gi-seo-neun taek-si jap-gi-ga him-deu-reo-yo

   It's hard to catch a taxi around here.

3. 3

   pin the date down

   회의 날짜를 다음 주로 잡았어요.

   hoe-ui nal-jja-reul da-eum ju-ro ja-ba-sseo-yo

   We've set the meeting for next week.

4. 4

   catch the one running

   범인을 잡았대요.

   beo-mi-neul ja-bat-dae-yo

   They say they caught the culprit.

5. 5

   pin a number down

   예산은 넉넉하게 잡았어요.

   ye-sa-neun neong-neo-ka-ge ja-ba-sseo-yo

   We set the budget generously.

   잡다 also means to estimate and settle on a figure, as in 넉넉하게 잡다.