Here is a short dictionary with basic must-know Hebrew words that you'll certainly hear while walking on the streets of Israel, and most likely use as a foreign worker:

1. Shalom- Hello /Peace

2. Toda - Thank you

3. Boker Tov - Good morning

4. Erev Tov - Good evening

5. Laila Tov - Good night

6. Ken- Yes

7. Lo - No

8. Slicha - Excuse me / Sorry

9. Bevakasha - Please

10. Toda Raba - Thank you very much

11. Boker Or - Good morning (informal)

12. Erev Tov - Good afternoon / Good evening (informal)

13. Shalom Aleichem - Peace be upon you (greeting)

14. Lehitraot - Goodbye (informal)

15. Ken, Tov - Yes, okay

16. Lo Tov - No, not good

17. Beseder - Okay / All right

18. Ma Kore - What's happening? / What's up?

19. Sababa - Cool / Great

20. Yalla - Let's go / Come on

These are some essential Hebrew words that can help you in your everyday conversations. Feel free to explore more Hebrew words and phrases to enhance your language skills!