trouble

How to sign: a source of difficulty
"one trouble after another delayed the job"; "what's the problem?";

Similiar / Same: problem

Categories: difficulty

Within this category: can of worms, deep water, growing pains, hydra, matter

trouble

How to sign: move deeply
"This book upset me"; "A troubling thought";

Similiar / Same: disturb, upset

Categories: affect, impress, move, strike

Within this category: agitate, distress, jolt, perturb

trouble

How to sign: disturb in mind or make uneasy or cause to be worried or alarmed
"She was rather perturbed by the news that her father was seriously ill";

Similiar / Same: perturb, unhinge, disquiet, cark, disorder, distract

Categories: disturb, trouble, upset

Within this category: worry