My feeling is that {jIb} “hair on head” is a mass noun. For a single hair I would use {SIrgh} “string, thread, filament” – {jIb SIrgh} on the model of {baS SIrgh} “wire” (qepHom 2016). See KGT: (KGT 76): Each string is a {SIrgh}, a word also used for any thread or filament. A {SIrgh} of the finest quality is made from a material secreted by insects, similar to the silk produced by silkworms. What I know about {tlhIngan jIb}: (qurgh, 7/28/2017 < qep’a’ 2017): I asked [Okrand] about {jIb}, {pob}, {loch} and {rol} after there was a conversation about it in the Learn Klingon Facebook group. {jIb} is only hair on the top of your head, {loch} is the hair on your upper lip, {rol} is the hair on your face that covers you chin/neck area, and {pob} is hair from the neck down. Arm hair is {DeS pob}. The words cover both the hair and the entire construction, so {rol} refers to a beard as well as the hair that makes up the beard. However, ear hair or nose hair is talked about using {pob}, and {pob} *can* be used to talk about face hair or head hair but it would be considered very strange to do so. DaH jIbwIj vISay'nISmoH I must wash my hair now. PK jIbDaj lumeQmoH qul bIQtIq qulHommey Sparks from the fire river caught his hair PB 'ej bejtaHvIS baS moj jIb his hair … turned to steel before his eyes PB jIb Ho'Du' comb (n) TNK jIb yachwI' hairbrush (n) TNK Mr. Setti (Mott's fellow Bolian barber on the Enterprise-D) noted admiringly that Klingon hair is quite thick and luxuriant, although he suggested Worf start using a conditioning agent as his hair had become dry. (TNG "Schisms") (KGT 58-9): According to Klingon tradition, the first bat'leth was forged by Kahless the Unforgettable, the founder of the Klingon Empire, from a lock of his hair dipped in molten lava. (STC:KLS): The first was forged by Kahless from a lock of his own hair which he placed in the lava from the Kri'stak volcano. He then plunged the burning lock into the lake of Lursor, twisted it into a blade and killed the evil tyrant Molor with it. -- Voragh Ca'Non Master of the Klingons From: mayqel qunen'oS Can I say {wa' jIb}, {cha' jIb}, etc, or does {jIb} mean "all the hairs of the head" ?