"Bare" and "Barely" might look like they are similar words, but they actually have very different meanings.

"Bare" can be used as a verb or an adjective, and it is related to the idea of something being "exposed", "nude", or "uncovered". For example:
  1. Be careful not to touch the bare electrical wires after you open the power box.
  2. Women are not allowed to bare their heads in public in some countries of the world.
  3. The scientist spilled a chemical on his bare skin and quickly washed it off.
Barely, however, has an entirely different meaning. Barely means that something happened, but it almost didn't happen.

For example: "I barely missed the train" might mean that you were running up the stairs as the train doors close. Perhaps you were ten seconds too late, and missed the train. You barely missed the train

We use barely in a way that makes it the opposite of "almost".

For example: "I almost missed the train" means that you were close to missing the train, but you did not. You were maybe five seconds early, and entered the train as the door was closing behind you. You almost missed the train, but didn't.

"I barely missed the train" means the opposite. It means that you did miss the train, but were close to being on time.

Be careful with words such as bare and barely, which may look similar, but which in fact are very different from each other in meaning.