The crossword-style answer for “states of mind that can be expressed with emoji” is MOODS.

Explanation

• The clue “states of mind” points to words like moods, feelings, or emotions.

• “That can be expressed with emoji” narrows it to a short plural noun; emojis are commonly used to show different moods in digital communication.

• A published puzzle solution for this exact clue confirms the intended answer is MOODS.