Hello and welcome to JustAnswer!
It's something you are definitely going to want to get looked at, at least for the safety aspect. There are several things that can make noise in the front end.
A loose tie rod end can make noise over a bump, but should also make the noise when turning the steering wheel side to side while stationary or moving slow.
A lower ball joint could be loose and making the noise.
There are links that go between the sway bar and the struts that have joints on them that can wear over time and make noise.
The sway bar mounts to the subframe in some rubber bushings that wear every time the suspension moves. When they wear enough these will cause some noise over bumps.
The struts could also give a hollow clunk over bumps, and so could their mount plates that they mount to the body with.