gambler or risk taker
A bookmaker or bookie .
cameraman
The Arabic word for care taker is : Harees "حريص
Wager is a gambling term, another word would be bet.
guardian or care taker.
referee
Settlement and settlers are alternative terms for colony and colonists, respectively.
guardian or care taker.
pronounce the word as you see it - bet.
The African Luhya term for the English word "bet" is 'ipilaa'.
The survey taker asked for feedback on my purchase.
monitoring. if you mean observation as in to watch soemthing, monitor or monitoring would be the best bet.