See FO in All languages combined, or Wiktionary
{
"etymology_text": "Abbreviation",
"forms": [
{
"form": "FOs",
"tags": [
"plural"
]
},
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"head_templates": [
{
"args": {},
"expansion": "FO (plural FOs)",
"name": "en-noun"
}
],
"lang": "English",
"lang_code": "en",
"pos": "noun",
"senses": [
{
"alt_of": [
{
"word": "first officer"
}
],
"categories": [
{
"kind": "other",
"langcode": "en",
"name": "Aviation",
"orig": "en:Aviation",
"parents": [],
"source": "w"
}
],
"glosses": [
"Initialism of first officer."
],
"id": "en-FO-en-noun-32lRt0fx",
"links": [
[
"aviation",
"aviation"
],
[
"first officer",
"first officer#English"
]
],
"raw_glosses": [
"(aviation) Initialism of first officer."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"aeronautics",
"aerospace",
"aviation",
"business",
"engineering",
"natural-sciences",
"physical-sciences"
]
},
{
"alt_of": [
{
"word": "field officer"
}
],
"categories": [
{
"_dis": "8 3 8 29 34 1 17",
"kind": "other",
"name": "English entries with incorrect language header",
"parents": [],
"source": "w+disamb"
}
],
"glosses": [
"Initialism of field officer."
],
"id": "en-FO-en-noun-1XbMaBbW",
"links": [
[
"field officer",
"field officer#English"
]
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
]
},
{
"alt_of": [
{
"word": "first-order logic"
}
],
"categories": [
{
"kind": "other",
"langcode": "en",
"name": "Computer science",
"orig": "en:Computer science",
"parents": [],
"source": "w"
},
{
"kind": "other",
"langcode": "en",
"name": "Logic",
"orig": "en:Logic",
"parents": [],
"source": "w"
},
{
"_dis": "8 3 8 29 34 1 17",
"kind": "other",
"name": "English entries with incorrect language header",
"parents": [],
"source": "w+disamb"
}
],
"glosses": [
"Initialism of first-order logic."
],
"id": "en-FO-en-noun-8ajAKC1v",
"links": [
[
"logic",
"logic"
],
[
"computer science",
"computer science"
],
[
"first-order logic",
"first-order logic#English"
]
],
"raw_glosses": [
"(logic, computer science) Initialism of first-order logic."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"computer",
"computing",
"engineering",
"human-sciences",
"logic",
"mathematics",
"natural-sciences",
"philosophy",
"physical-sciences",
"science",
"sciences"
]
},
{
"alt_of": [
{
"word": "fuel oil"
}
],
"categories": [],
"glosses": [
"Initialism of fuel oil."
],
"id": "en-FO-en-noun-en:Q214199",
"links": [
[
"fuel oil",
"fuel oil#English:_Q214199"
]
],
"senseid": [
"en:Q214199"
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"wikidata": [
"Q214199"
]
}
],
"word": "FO"
}
{
"etymology_text": "Abbreviation",
"forms": [
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"lang": "English",
"lang_code": "en",
"pos": "intj",
"senses": [
{
"alt_of": [
{
"word": "fuck off"
}
],
"categories": [],
"glosses": [
"Initialism of fuck off."
],
"id": "en-FO-en-intj-VuQdfGFg",
"links": [
[
"Internet",
"Internet"
],
[
"text messaging",
"text messaging"
],
[
"fuck off",
"fuck off#English"
]
],
"raw_glosses": [
"(Internet slang, text messaging, vulgar) Initialism of fuck off."
],
"tags": [
"Internet",
"abbreviation",
"alt-of",
"initialism",
"vulgar"
]
}
],
"word": "FO"
}
{
"etymology_text": "Abbreviation",
"forms": [
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"head_templates": [
{
"args": {
"1": "-"
},
"expansion": "FO (not comparable)",
"name": "en-adj"
}
],
"lang": "English",
"lang_code": "en",
"pos": "adj",
"senses": [
{
"alt_of": [
{
"extra": "no longer compliant with current standards or capable of handling current requirements",
"word": "functionally obsolete"
}
],
"categories": [],
"glosses": [
"Initialism of functionally obsolete (no longer compliant with current standards or capable of handling current requirements)"
],
"id": "en-FO-en-adj-gLQf9v-f",
"links": [
[
"functionally",
"functionally#English"
],
[
"obsolete",
"obsolete#English"
]
],
"raw_glosses": [
"(civil engineering) Initialism of functionally obsolete (no longer compliant with current standards or capable of handling current requirements)"
],
"tags": [
"abbreviation",
"alt-of",
"initialism",
"not-comparable"
],
"topics": [
"civil-engineering",
"engineering",
"natural-sciences",
"physical-sciences"
]
}
],
"word": "FO"
}
{
"categories": [
"English abbreviations",
"English adjectives",
"English countable nouns",
"English entries with incorrect language header",
"English interjections",
"English lemmas",
"English nouns",
"English uncomparable adjectives",
"Pages with 2 entries",
"Pages with entries"
],
"etymology_text": "Abbreviation",
"forms": [
{
"form": "FOs",
"tags": [
"plural"
]
},
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"head_templates": [
{
"args": {},
"expansion": "FO (plural FOs)",
"name": "en-noun"
}
],
"lang": "English",
"lang_code": "en",
"pos": "noun",
"senses": [
{
"alt_of": [
{
"word": "first officer"
}
],
"categories": [
"English initialisms",
"en:Aviation"
],
"glosses": [
"Initialism of first officer."
],
"links": [
[
"aviation",
"aviation"
],
[
"first officer",
"first officer#English"
]
],
"raw_glosses": [
"(aviation) Initialism of first officer."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"aeronautics",
"aerospace",
"aviation",
"business",
"engineering",
"natural-sciences",
"physical-sciences"
]
},
{
"alt_of": [
{
"word": "field officer"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of field officer."
],
"links": [
[
"field officer",
"field officer#English"
]
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
]
},
{
"alt_of": [
{
"word": "first-order logic"
}
],
"categories": [
"English initialisms",
"en:Computer science",
"en:Logic"
],
"glosses": [
"Initialism of first-order logic."
],
"links": [
[
"logic",
"logic"
],
[
"computer science",
"computer science"
],
[
"first-order logic",
"first-order logic#English"
]
],
"raw_glosses": [
"(logic, computer science) Initialism of first-order logic."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"computer",
"computing",
"engineering",
"human-sciences",
"logic",
"mathematics",
"natural-sciences",
"philosophy",
"physical-sciences",
"science",
"sciences"
]
},
{
"alt_of": [
{
"word": "fuel oil"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of fuel oil."
],
"links": [
[
"fuel oil",
"fuel oil#English:_Q214199"
]
],
"senseid": [
"en:Q214199"
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"wikidata": [
"Q214199"
]
}
],
"word": "FO"
}
{
"categories": [
"English abbreviations",
"English adjectives",
"English countable nouns",
"English entries with incorrect language header",
"English interjections",
"English lemmas",
"English nouns",
"English uncomparable adjectives",
"Pages with 2 entries",
"Pages with entries"
],
"etymology_text": "Abbreviation",
"forms": [
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"lang": "English",
"lang_code": "en",
"pos": "intj",
"senses": [
{
"alt_of": [
{
"word": "fuck off"
}
],
"categories": [
"English initialisms",
"English internet slang",
"English text messaging slang",
"English vulgarities"
],
"glosses": [
"Initialism of fuck off."
],
"links": [
[
"Internet",
"Internet"
],
[
"text messaging",
"text messaging"
],
[
"fuck off",
"fuck off#English"
]
],
"raw_glosses": [
"(Internet slang, text messaging, vulgar) Initialism of fuck off."
],
"tags": [
"Internet",
"abbreviation",
"alt-of",
"initialism",
"vulgar"
]
}
],
"word": "FO"
}
{
"categories": [
"English abbreviations",
"English adjectives",
"English countable nouns",
"English entries with incorrect language header",
"English interjections",
"English lemmas",
"English nouns",
"English uncomparable adjectives",
"Pages with 2 entries",
"Pages with entries"
],
"etymology_text": "Abbreviation",
"forms": [
{
"form": "F.O.",
"tags": [
"alternative"
]
},
{
"form": "F. O.",
"tags": [
"alternative"
]
}
],
"head_templates": [
{
"args": {
"1": "-"
},
"expansion": "FO (not comparable)",
"name": "en-adj"
}
],
"lang": "English",
"lang_code": "en",
"pos": "adj",
"senses": [
{
"alt_of": [
{
"extra": "no longer compliant with current standards or capable of handling current requirements",
"word": "functionally obsolete"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of functionally obsolete (no longer compliant with current standards or capable of handling current requirements)"
],
"links": [
[
"functionally",
"functionally#English"
],
[
"obsolete",
"obsolete#English"
]
],
"raw_glosses": [
"(civil engineering) Initialism of functionally obsolete (no longer compliant with current standards or capable of handling current requirements)"
],
"tags": [
"abbreviation",
"alt-of",
"initialism",
"not-comparable"
],
"topics": [
"civil-engineering",
"engineering",
"natural-sciences",
"physical-sciences"
]
}
],
"word": "FO"
}
Download raw JSONL data for FO meaning in English (4.3kB)
This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-12-31 from the enwiktionary dump dated 2025-12-20 using wiktextract (e97c820 and 9905b1f). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.
If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.