Begin
Begin verb - To take the first step in (a process or course of action).
Usage example: she began walking to work for exercise
Open is a synonym for begin in start topic. In some cases you can use "Open" instead a verb "Begin", when it comes to topics like origin, start talking.
Nearby Word: beginning
Common collocations
Both words in one sentence
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Lyrical Cold Open: "Demons" and "Every Night" both start with lyrics before the instruments begin.
Source: Music / Imagine Dragons -
The Abductors of Freedom Wars are tough to begin with, but after breaking open their pods and rescuing the citizens trapped inside, they start to glow red and fight more aggressively to take back the citizen you rescued.
Source: Turns Red - And when you do open the crate you may get a hat, or a very rare unusual hat... but more likely to get a regular weapon that could have been dropped instead of the crate to begin with!
Cite this Source
Open and Begin. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/begin/open
Begin & Open. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/begin/open>.
Open or Begin. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/begin/open.
Google Ngram Viewer shows how "begin" and "open" have occurred on timeline