See SPF in All languages combined, or Wiktionary
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"ref": "2017, Bob Berman, Zapped: From Infrared to X-rays, the Curious History of Invisible Light, Little, Brown and Company, →ISBN, page 60:",
"text": "For the rest of us, each day’s variable solar conditions require a judgment call. And probably sunscreen, whose SPF (sun protection factor) numbers reveal how effective the product is. A lotion with an SPF of 10, for example, tells us that if current conditions would give you a burn in one hour, the sunscreen will forestall the burn for ten hours. Most sunscreens use either titanium dioxide or zinc oxide, chemicals that reflect, scatter, or absorb ultraviolet light and dissipate it as heat. In practice, creams labeled SPF 30 provide 96 percent of the protection of an SPF 90 product, which suggests that you’ll do fine with a 30 as long as you keep reapplying it as needed during the day.",
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"ref": "2022 July 21, Nancy Redd, “How much SPF is enough?”, in The New York Times, →ISSN:",
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"word": "single point of failure"
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"Initialism of single point of failure."
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{
"word": "spray polyurethane foam"
}
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"Initialism of spray polyurethane foam."
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"word": "<"
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"word": "foam#Noun"
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},
{
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{
"word": "spruce-pine-fir"
},
{
"word": "mixed softwood timber"
}
],
"categories": [],
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"Initialism of spruce-pine-fir, mixed softwood timber."
],
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"spruce",
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[
"pine",
"pine#English"
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"fir",
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"pos": "adj",
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{
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{
"word": "specific-pathogen-free"
}
],
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"Initialism of specific-pathogen-free."
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"(of laboratory animals) Initialism of specific-pathogen-free."
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"word": "Scottish Police Federation"
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],
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"Initialism of Scottish Police Federation."
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"word": "Sender Policy Framework"
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"Initialism of Sender Policy Framework."
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"(Internet) Initialism of Sender Policy Framework."
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577
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"text": "For the rest of us, each day’s variable solar conditions require a judgment call. And probably sunscreen, whose SPF (sun protection factor) numbers reveal how effective the product is. A lotion with an SPF of 10, for example, tells us that if current conditions would give you a burn in one hour, the sunscreen will forestall the burn for ten hours. Most sunscreens use either titanium dioxide or zinc oxide, chemicals that reflect, scatter, or absorb ultraviolet light and dissipate it as heat. In practice, creams labeled SPF 30 provide 96 percent of the protection of an SPF 90 product, which suggests that you’ll do fine with a 30 as long as you keep reapplying it as needed during the day.",
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{
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82,
85
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"Initialism of spray polyurethane foam."
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Download raw JSONL data for SPF meaning in English (5.7kB)
This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-09-03 from the enwiktionary dump dated 2025-08-23 using wiktextract (20da82b and a97feda). 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.