See CTC in All languages combined, or Wiktionary
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"Install or convert to Centralized Traffic Control."
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"traffic#English"
],
[
"Control",
"control#English"
]
],
"raw_glosses": [
"(rail transport) Initialism of Centralized (or Centralised) Traffic Control."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"rail-transport",
"railways",
"transport"
]
},
{
"alt_of": [
{
"word": "circulating tumor cell"
}
],
"categories": [
"English initialisms",
"en:Medicine"
],
"examples": [
{
"text": "2018—Mursina, Kate (8 February 2018): \"Teasing Out Circulating Tumor DNA\". ClinicalOMICs.\nAn ability to etect (sic) circulating tumor cells (CTCs) or cell-free cancer DNA (cfDNA) in blood or saliva opens possibilities to suspect cancer even before it is visible on radiological images."
}
],
"glosses": [
"Initialism of circulating tumor cell."
],
"links": [
[
"medicine",
"medicine"
],
[
"circulating tumor cell",
"w:circulating tumor cell"
]
],
"raw_glosses": [
"(medicine) Initialism of circulating tumor cell."
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
],
"topics": [
"medicine",
"sciences"
]
},
{
"alt_of": [
{
"word": "closed timelike curve"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of closed timelike curve."
],
"links": [
[
"closed timelike curve",
"w:closed timelike curve"
]
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
]
},
{
"alt_of": [
{
"word": "certified true copy"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of certified true copy."
],
"links": [
[
"certified true copy",
"w:certified true copy"
]
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
]
},
{
"alt_of": [
{
"word": "child tax credit"
}
],
"categories": [
"English initialisms",
"English terms with quotations"
],
"examples": [
{
"bold_text_offsets": [
[
22,
25
]
],
"ref": "2021 July 14, Sherrod Brown, Peter Edelman, “It’s time to make these expanded tax credits permanent”, in CNN Business:",
"text": "In 2018, the EITC and CTC kept 10.6 million people out of poverty, according to the CBPP, and the evidence shows they improve health, education and long-term employment outcomes, especially among children.",
"type": "quotation"
}
],
"glosses": [
"Initialism of child tax credit."
],
"links": [
[
"child tax credit",
"w:child tax credit"
]
],
"tags": [
"abbreviation",
"alt-of",
"initialism"
]
}
],
"sounds": [
{
"audio": "EN-AU ck1 CTC.ogg",
"mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8a/EN-AU_ck1_CTC.ogg/EN-AU_ck1_CTC.ogg.mp3",
"ogg_url": "https://upload.wikimedia.org/wikipedia/commons/8/8a/EN-AU_ck1_CTC.ogg"
}
],
"word": "CTC"
}
{
"categories": [
"English countable nouns",
"English entries with incorrect language header",
"English lemmas",
"English nouns",
"English palindromes",
"English phrases",
"English proper nouns",
"English uncountable nouns",
"English verbs",
"English words spelled without vowels",
"Pages with 1 entry",
"Pages with entries",
"en:Time travel"
],
"forms": [
{
"form": "CTCs",
"tags": [
"present",
"singular",
"third-person"
]
},
{
"form": "CTCing",
"tags": [
"participle",
"present"
]
},
{
"form": "CTCed",
"tags": [
"participle",
"past"
]
},
{
"form": "CTCed",
"tags": [
"past"
]
}
],
"head_templates": [
{
"args": {},
"expansion": "CTC (third-person singular simple present CTCs, present participle CTCing, simple past and past participle CTCed)",
"name": "en-verb"
}
],
"lang": "English",
"lang_code": "en",
"pos": "verb",
"related": [
{
"english": "positive train control",
"sense": "centralized traffic control",
"translation": "positive train control",
"word": "PTC"
}
],
"senses": [
{
"alt_of": [
{
"word": "Check The Classification"
},
{
"word": "given to films to allow advertising prior to their official classification"
}
],
"categories": [
"Australian English",
"English initialisms"
],
"glosses": [
"Initialism of Check The Classification, given to films to allow advertising prior to their official classification."
],
"links": [
[
"Check",
"check#English"
],
[
"The",
"the#English"
],
[
"Classification",
"classification#English"
]
],
"qualifier": "film classification",
"raw_glosses": [
"(Australia, film classification) Initialism of Check The Classification, given to films to allow advertising prior to their official classification."
],
"tags": [
"Australia",
"abbreviation",
"alt-of",
"initialism"
]
},
{
"categories": [
"English informal terms",
"English terms with quotations"
],
"examples": [
{
"bold_text_offsets": [
[
80,
86
]
],
"ref": "1959, Trans-communicator - Volume 76, page 39:",
"text": "That installation will deplete telegraphers jobs considerably. Santa Fe already CTCing Mojave to Barstow.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
110,
116
]
],
"ref": "1960, Railway Signaling and Communications - Volume 53, page 16:",
"text": "Considerable activity on CTC projects will occur during the year. Several roads are well along on programs of CTCing their mainlines: AT&SF, C&O, CNR, NYC, NP, SP and UP.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
57,
63
]
],
"ref": "1995 February 12, krjo...@ulkyvx.louisville.edu, “Monitoring CSX and NS in Louisville, KY”, in rec.railroad (Usenet):",
"text": "The control of NS yards in Lousiville is a first step of CTCing the entire line from Danville to Prinston.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
172,
178
]
],
"ref": "1997 May 10, Kevin013, “Should CalTrain Drop \"Push-Pull\" Operating?”, in ba.transportation (Usenet):",
"text": "This is something of a stretch. Yes, CalTrain is already safe, but, like I said, it is behind the times compared to other railroads. Part of improving service will involve CTCing the whole 47 miles of line.",
"type": "quotation"
},
{
"bold_text_offsets": [
[
39,
45
]
],
"ref": "1999 July 3, Erich Houchens, “NYC, PRR and CTC”, in misc.transport.rail.americas (Usenet):",
"text": "Back in the early 80's when Amtrak was CTCing the Northeast corridor the operators union (BRAC) notified Amtrak that only they could operate CTC on ex PRR lines.",
"type": "quotation"
}
],
"glosses": [
"Install or convert to Centralized Traffic Control."
],
"raw_glosses": [
"(informal) Install or convert to Centralized Traffic Control."
],
"tags": [
"informal"
]
}
],
"sounds": [
{
"audio": "EN-AU ck1 CTC.ogg",
"mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/8/8a/EN-AU_ck1_CTC.ogg/EN-AU_ck1_CTC.ogg.mp3",
"ogg_url": "https://upload.wikimedia.org/wikipedia/commons/8/8a/EN-AU_ck1_CTC.ogg"
}
],
"word": "CTC"
}
Download raw JSONL data for CTC meaning in English (10.5kB)
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.