a problem; a thing or situation that causes problems

the state or quality of being hard to do or to understand; the effort that something involves

I had considerable difficulty (in) persuading her to leave.

I had no difficulty (in) making myself understood.

He spoke slowly and with great difficulty.

The changes were made with surprisingly little difficulty.

We found the house without difficulty.

They discussed the difficulty of studying abroad.

Both roles had a high degree of difficulty.

The games have varying levels of difficulty.

questions of increasing difficulty

The walks in the book vary in difficulty.

LEARNit Dictionary