The prefix meaning “both” is “ambi-.” This prefix comes from Latin and is used to describe something that involves or relates to both sides, directions, or perspectives.
Common examples include words like ambidextrous (able to use both hands equally) and ambivalent (having mixed or dual feelings about something).
When crossword clues such as “Prefix meaning both” appear in The New York Times (NYT) Crossword, the correct answer is usually “ambi.”
Origins of the Prefix “Ambi-”
The prefix “ambi-” originates from the Latin word ambo, meaning “both” or “on both sides.” It entered English through Middle French and Old Latin influences, becoming a common root in scientific, psychological, and everyday vocabulary.
The prefix conveys balance, duality, or the inclusion of two contrasting elements within one concept.
How to Use “Ambi-” in a Sentence?
The prefix “ambi-” is often used in English to form words that describe things involving two sides, directions, or states of mind. It’s commonly found in academic, medical, and psychological terms, as well as in general language.
Here are five examples:
- “He’s ambidextrous, able to write with both hands.”
→ “Ambi-” indicates using both sides equally. - “She felt ambivalent about moving abroad.”
→ “Ambi-” shows mixed or dual feelings — both positive and negative. - “The logo design is ambiform, identical on both sides.”
→ Used to describe something symmetrical or two-sided. - “An ambivert enjoys both socializing and solitude.”
→ Refers to someone with both introverted and extroverted traits. - “The experiment required an ambipolar device that reacts on both charges.”
→ Used in scientific contexts to describe dual electrical behavior.

Pronunciation of Ambi
Pronounced as: am-bee (placeholder for audio pronunciation).
Words Similar to Ambi
- Bi-: Means “two” (e.g., bilingual, bicycle).
- Di-: Also means “two” or “double” (e.g., dioxide, dilemma).
- Dual: Describes something made of two parts or sides.
- Co-: Means “together” or “with” (e.g., coexist, cooperate).
- Pan-: Means “all,” sometimes overlapping with dual inclusion (e.g., panoramic).
