I wish to begin to understand 「～出す」 and 「～始める」

[J44xm]

I've heard two words appended to verbs to indicate the beginning of said action: 「出す」 and 「始める」. But I'm not sure what the difference in usage and meaning is. Could I receive some help in understanding this? Many thanks.

 

[Glenn]

From what I've read about them, the only difference is that 〜だす implies a more sudden and abrupt start than does はじめる.

帰っていた途中、思わず走り始めた。
信号で選手はみんな走り出した。

I'll admit that those sentences are perhaps not the most natural, but I hope it gets the message across. Also, I'd like to know if there are any more differences.

 

[J44xm]

Thank you much, Glenn. Very clear, indeed. Much appreciated. And of course, more thoughts from others are appreciated!

 

[Glenn]

I just found this, too: 「〜はじめる」「〜だす」について

 

[Elizabeth]

From what I've read about them, the only difference is that 〜だす implies a more sudden and abrupt start than does はじめる.
帰っていた途中、思わず走り始めた。
信号で選手はみんな走り出した。
I'll admit that those sentences are perhaps not the most natural, but I hope it gets the message across. Also, I'd like to know if there are any more differences.

帰る途中、思わず走り出した 。I think is better though since I've never heard
走り始めた。 and can imagine it may mean nothing more than simply starting to run whereas dashita definitely implies a sense of speed, purpose and direction.

I hope it comes off mostly OK, anyway.