「Ten (doubled)」as TWENTY.「Array of cavities」or「full cavities」or「filled, connected, filled again」for an inexact count of TWENTY OR SO (an approximate count when an exact count is a bit difficult for some reason). Also means MANY AND VARIOUS TIMES. As for affecting stroke counts, sometimes drawn using three strokes, and sometimes using four, and uses 念 as a replacement glyph…presumably,「thoughts」that uses elements of「now, -hearted, -minded, spewing drops from appendage.」
　Substitutes for the old glyph (炗) meaning「light rays, night flashes, heated and flaming.」Often used in association with ILLEGITIMATE CHILDREN, or to peasants and serfs as「common」people with no known lineage, since the daily lifestyles of early humans left many without a clear paternity line. Compare with the English expression,「an old flame」that caused one to become heated (from passion or lust).
　「Screwing in array and screwing again」as TWENTY OR SO, BASTARD also describes our early, bonobo-like, cannibal ancestors from the caves, not just in China, but everywhere.
　「We know that human sacrifice and cannibalism were widely practiced in pre-literate societies and that they were not local but universal cultural phenomena…. [T]he ancient Chinese also participated in this culture, which has much in common with the [Journal of Generative Anthropology] position about the violent origin and early development of human civilization…」
　　[　https://anthropoetics.ucla.edu/ap1401/1401plutschow/ 2011-03-08　]　
　In the old days, with an average life expectancy of only 30 years and birthing once per year beginning at puberty, the average human female bore about twenty or so young during her life, and no one could have been called monogamous in those days. As it is with most other primates and large mammals…and small mammals, too…coital sex with females being the role of adult males only until a male becomes sufficiently large and strong to beat his way into the pecking order. Females, on the contrary, were copulating with adult males from an early age long prior to puberty, and after birthing each year as soon as they could do it again:「In traditional Chinese medicine, there has never been a mental disease called pedophilia (or an equivalent term)…. Children are usually described as natural sexual beings and erotic stimulation and sex-play are seen as beneficial to their healthy development.」
　　[　https://docx2.com/wp-content/uploads/Are-Any-of-the-Pharaphilias-in-DSM-Mental-Disorders_.pdf 2023-05-14　]　
　「Bound feet were a mark of beauty…[folks] took great pride in tiny feet, with the ideal length, called the 'Golden Lotus,' being about 7 cm (2.75 inches) long. …The process was started before the arch of the foot had a chance to develop fully, usually between the ages of 2 and 5. …Qing Dynasty sex manuals listed 48 different ways of playing with women's bound feet.」
　　[　https://en.wikipedia.org/wiki/Foot_binding 2012-12-17　]　
　「Viewing women as commodities [see 品] was also made customary from Song Dynasty (960 - 1279) forward, both in the suddenly expanded labor market and within relationships. Men could sell their female kin to slavery or prostitution, and frequently did.」
　　[　https://www.zum.de/whkmla/sp/0910/hersheys/hersheys5.html 2011-04-05　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: twenty (20), in a limited number of set expressions; also written using banker's character 念
Japanese: twenty, 20 years old
Unihan extended: twenty, twentieth
EDRDG: twenty; 20

Used within names (nanori)
はつ