These are interesting words sometimes called autantonyms, contranyms or Janus words. There are other names for them as well. There are many.
Cleave (to cut, or to cling to)
Oversight (Responsibility for administering, or a thing which is neglected or missed)
Dust (to distribute fine particles, to remove fine particles)
Fat : thin
Yes, it can be an antonym for many words.
Some words do not have opposites [antonyms]. The word "where" has no antonym.
Some words do not have direct opposites [antonyms]. The word "which" has no antonym.
Some words do not have direct opposites [antonyms]. The word "what" has no antonym.
Fat : thin
There is no antonym for bicycle. Some words just do not have an antonym.
Yes, it can be an antonym for many words.
Some words do not have opposites [antonyms]. The word "where" has no antonym.
Some words do not have opposites [antonyms]. The word "why" has no antonym
Antonyms are words that are opposites. An antonym for the word "play" would be "work." To work is to act physically or mentally with a purpose, while to play is to act solely for one's own amusement.
Some words do not have direct opposites [antonyms]. The word "if" has no antonym.
Some words do not have direct opposites [antonyms]. The word "who" has no antonym.
Some words do not have opposites [antonyms]. Cheese has no antonym.
Some words do not have direct opposites [antonyms]. The word "which" has no antonym.
Some words do not have direct opposites [antonyms]. The word "what" has no antonym.
Some words do not have direct opposites [antonyms]. The word "about" has no antonym.