Fly in the ointment and Worm in the apple

Fly in the ointment noun - An inconvenience that detracts from the usefulness of something.

Worm in the apple and fly in the ointment are semantically related. In some cases you can replace phrase "Worm in the apple" with "Fly in the ointment", this phrases are similar.

Fly in the ointment and worm in the apple are semantically related. Sometimes you can replace phrase "Fly in the ointment" with "Worm in the apple", this phrases are similar.