ys

ys

1. (metrology) Symbol for the yoctosecond, an SI unit of time equal to 10⁻²⁴ seconds.

ys

1. plural of y

• There is some difference of opinion regarding the use of apostrophes in the pluralization of references to letters as symbols. New Fowler's Modern English Usage, after noting that the usage has changed, states on page 602 that "after letters an apostrophe is obligatory." The 15th edition of The Chicago Manual of Style states in paragraph 7.16, "To avoid confusion, lowercase letters ... form the plural with an apostrophe and an s". The Oxford Style Manual on page 116 advocates the use of common sense.

• SY, Sy

From Dutch ijs.

• IPA^(key): [ə̟i̯s]

ys (uncountable)

1. ice, frozen water
2. (slang, drugs) ice, methamphetamine

• ysie

ys f (singulative ysen)

1. corn

• ys hweg/hwegys
• ys pop
• ysek

ys

1. feminine plural of -if

ys m (genitive singular yss, no plural)

1. noise, din, racket

ys

1. Alternative form of his

ys

1. Alternative form of his

• “his, (pron.1)” in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 8 May 2018.
• “his, (pron.2)” in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 9 May 2018.

ys

1. Alternative form of heo

• “hir(e), pron (2)” in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 10 June 2018.

From Old English īs.

ys (uncountable)

1. Alternative form of is (“ice”)

From Old English is.

ys

1. Alternative form of is (“is”)

From Proto-Indo-European *h₁ésti, a form of *h₁es-; compare Old Irish is.

ys

1. (literary) impersonal present progressive of bod

• ydys

ys n

1. ice, frozen water