Nouns starting with F

• first-rater — Noun – English ～ one who is first-rate
• focal ratio — Noun – English ～ the ratio of the focal length to the diameter of a (camera) lens system
• field ration — Noun – English ～ rations issued for United States troops in the field
• Fatah-RC — Noun – English ～ a Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries; "in the 1980s the Fatah-RC was considered the most dangerous and murderous Palestinian terror group"
• fast reactor — Noun – English ～ nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used
• fusion reactor — Noun – English ～ a nuclear reactor that uses controlled nuclear fusion to generate energy
• first reading — Noun – English ～ the first presentation of a bill in a legislature
• favourable reception — Noun – English ～ acceptance as satisfactory; "he bought it on approval"
• favorable reception — Noun – English ～ acceptance as satisfactory; "he bought it on approval"
• face recognition — Noun – English ～ the visual perception of familiar faces
• face recognition — Noun – English ～ biometric identification by scanning a person's face and matching it against a library of known faces; "they used face recognition to spot known terrorists"
• facial recognition — Noun – English ～ biometric identification by scanning a person's face and matching it against a library of known faces; "they used face recognition to spot known terrorists"
• Fritillaria recurva — Noun – English ～ western United States herb with scarlet and yellow narrow bell-shaped flowers
• family Recurvirostridae — Noun – English ～ long-legged shorebirds
• forest red gum — Noun – English ～ tall tree of Queensland and New South Wales and Victoria
• family Reduviidae — Noun – English ～ assassin bugs
• feather reed grass — Noun – English ～ a variety of reed grass
• free-reed instrument — Noun – English ～ a wind instrument with a free reed
• free-reed — Noun – English ～ a reed that does not fit closely over the aperture
• frame of reference — Noun – English ～ a system of assumptions and standards that sanction behavior and give it meaning

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