S
- sak （サㇰ） - summer (also known as the "women's season" for the fact that it is a good time of year for women to cultivate plants or to gather wild botanical resources)
- sampe (サンペ) - heart, cardiac organ
- san (サン) - to go down, to descend; to flow along (as a river)
- sanke (サンケ) - to send down, to cause to go down
- sani (サニ) - lineage, bloodline
- santek (サンテㇰ) - lineage, bloodline; descendant
- sapa (サパ) - head
- sapa pirka (サパピㇼカ) - to be intelligent, to be smart
- sapanpe (サパンペ) - men's ceremonial Ainu crown
- sapo (サポ) - elder sister
- sar (サㇻ) - tail (possessed form sara サラ or saraha サラハ)
- sar (サㇻ) - marsh, wetland, reedy plain
- sarki (サㇻキ) - reed
- sat (サッ) - to dry
- satke (サッケ) - to dry
- sayo （サヨ） - sayo, Ainu-style porridge
- sesek (セセㇰ) - to be hot
- sesekka (セセㇰカ) - to warm (by a fire, etc.), to heat
- set (セッ) - bed; nest (possessed form セチ seci or セチヒ secihi)
- heperset (ヘペレセッ) - a cage in which a bear cub is kept (also known as kamuyset or hepercise)
- seta (セタ) - dog (recent dialectal variants include sita シタ; early records of the Ainu language also contain other variant forms of this word for "dog," such as sta, heta, and hida)
- setur (セツル) - back (of one's body)
- si (シ) - dung, (animal) feces, excrement
- sik (シㇰ) - to be full (of oil, etc.); to become full, to be filled (with something); to be sated
- sik (シㇰ) - eye; eyesight (possessed form siki or sikihi)
- sikiwen (シキウェン) - weak-eyed, weak-sighted (literally, "one's eye(sight) is bad")
- sikkap (シㇰカㇷ゚) - eyelid
- sikkes (シㇰケシ) - the outer end or outer corner of an eye
- siknum (シクヌㇺ) - eyeball
- sikpa (シㇰパ) - the inner end or inner corner of an eye (also シㇰパケ sikpake)
- sikrap (シㇰラプ) - eyelash (also シキラプ sikirap in some dialects)
- siknu (シㇰヌ) - to be alive
- sikotan (シコタン） － Pleasant Village (present day Shikotan island)
- sine (シネ) - one
- sinep (シネプ) - one thing
- sinen (シネン) - one person
- sinrit (シンリッ) - root (of a tree, etc.); (ancestral) roots, bloodline, pedigree
- sippo (シッポ) - salt (cf. Japanese shio < *sipo 'salt')
- sir (シㇼ) - weather; appearance; status, condition; land, ground; island; mountain; world, realm
- siretok (シㇼエトㇰ) - the end of the Earth; the Shiretoko Peninsula
- sirka (シㇼカ) - (on) the ground, the surface of the earth; the upper or outer surface (of clothing, etc.)
- sirkunne (シㇼクンネ) - dusk
- sirpeker (シㇼペケレ) - dawn
- sirpirka (シㇼピㇼカ) - clear skies, good weather, to have good weather, the weather is fine
- sirwen (シㇼウェン) - bad weather, to have bad weather, the weather is bad (e.g. tanto sirwen wa apto as "Today, the weather is bad, and it is raining.")
- sirar (シラㇻ) - rocky shore
- sisam (シサㇺ) - Japanese (or assimilated Ainus); (more generally) any foreigner, non-Ainus (cf. Nivkh /sezam/, /sizm/ "Japanese"; probably originally from Ainu si- "self (reflexive prefix)" + sam "near by, close to; side" or Ainu si- "self (reflexive prefix)" + isam "not to exist, not to be, not to have")
- hure-sisam (フレシサㇺ) - Russian; (more generally) European (from Ainu hure "red" + sisam "Japanese; foreigner")
- sito (シト) - a dumpling made from rice or millet (cf. Japanese shitogi "ceremonial dumpling," Middle Korean *stek > Modern Korean tteok "Korean rice cake")
- sitoki (シトキ) - glass-bead necklace with a medallion
- siw (シゥ) - bitter
- siwnin (シゥニン) - blue, green, yellow
- siyuk (シユㇰ) - a male bear (also シゥㇰ siwk in some dialects)
- so (ソ) - waterfall, cascade
- sokkar (ソㇰカㇻ) - mat, rug
- sonno (ソンノ) - truly, really; very
- soy (ソィ) - outside (also used as a postposition, e.g. cise-soy "outside of a house," "outside the house")
- soyta - outside (in the locative case)
- soyke
- su (ス) - pot, cauldron
- su'asam (スアサム) - the bottom of a pot
- su'at (スアッ) - the bail of a pot
- suni (スニ) - the hook on which the bail of a pot is placed in order to suspend the pot over a fire
- suputa (スプタ) - a potlid, the lid of a pot
- sum (スㇺ) - oil (as food) (cf. Nivkh tʰom ~ -r̥om "fat")
- tarasum (タラスㇺ) - cod liver oil, oil obtained from the liver of Alaska pollock (Theragra chalcogramma)
- suma (スマ) - stone
- sumari (シュマリ) - fox
- supuya (スプヤ) - smoke (シプヤ sipuya in some dialects)
- susam (スサㇺ) - shishamo
- susu (スス) - willow
Read more about this topic: List Of Ainu Terms