This is the 8227th most frequent Chinese word.
grab
The Chinese word for "grab" (抓 - zhuā) means to seize, snatch, or take hold of something quickly.
抓紧 used in the phrase means to make the most of or use something efficiently, like time or an opportunity.
我们需要抓紧时间完成工作。
We need to seize the time to complete the work.
抢到 in this sentence conveys the idea of competing to obtain something, emphasizing successfully getting it.
我抢到了最后一张电影票。
I grabbed the last movie ticket.
抓住 here indicates physically taking hold of something, showing an action of grasping firmly.