Expressing "will" with "hui"

会 (huì) has multiple uses, but in this context, it is being used to express the possibility of an action happening in the future.

今晚我会在外面吃饭。 Jīnwǎn wǒ huì zài wàimian chīfàn. Tonight I will eat out.
明天你会来吗？ Míngtiān nǐ huì lái ma? Will you come tomorrow?
我们不会告诉你。 Wǒmen bù huì gàosu nǐ. We won't tell you.
他会来看你吗？ Tā huì lái kàn nǐ ma? Will he come to see you?
明天会下雨吗？ Míngtiān huì xiàyǔ ma? Will it rain tomorrow?
我出去一下，很快会回来。 Wǒ chūqù yīxià, hěnkuài huì huílái. I'm going out for a little while.I'll come back very soon.
他不会跟你结婚。 Tā bù huì gēn nǐ jiéhūn. He won't marry you.
老板会同意吗？Lǎobǎn huì tóngyì ma? Will the boss agree?
你女儿会听你的话。Nǐ nǚér huì tīng nǐ de huà. Your daughter will listen to you.
下班以后，我会给你打电话。 Xiàbān yǐhòu, wǒ huì gěi nǐ dǎ diànhuà. After getting off work, I will give you a call.

Sources and further reading