gerku bu bu-letteral

letteral: dog symbol, "U•ᴥ•U".

On affix form:

gerku: x₁ is a dog/canine/[bitch] of species/breed x₂.

In definition:

bu'ivla: x₁ (quoted text) is a “bu letteral” of character x₂ (zoi quote).
cmavrbu: x₁ is the selma'o "BU".
ga'elfu: x₁ (la'e zo BY/word-bu) is a capital/capitalised/upper-shift letter/digit/symbol in alphabet/character-set x₂ representing x₃.
ga'e zei lerfu: x₁ (la'e zo BY/word-bu) is a capital/capitalised/upper-shift letter/digit/symbol in alphabet/character-set x₂ representing x₃.
ivla: x₁ (brivla/selbri) is used by place x₂ (number/me'o+FA+bu) being filled with (a description of / symbol for) x₃, in the usage of x₄, according to rule(s) x₅.
jbole'u: le₁=lo₁ (la'e zo BY/word-bu) is a letter/digit/symbol of Lojban’s alphabet representing le₃
lerfu: x₁ (la'e zo BY/word-bu) is a letter/digit/symbol in alphabet/character-set x₂ representing x₃.
terjonle'u: x₁ (letteral: la'e zo BY/word-bu) is a hyphen/joining letter(al) in language x₂ with function in/context of use/with rules for use/with properties x₃, joining prefixed unit/lexeme/morpheme/string x₄ (quote) to postfixed unit/lexeme/morpheme/string x₅ (quote) in construct (full word) x₆ (quote)
to'alfu: x₁ (la'e zo BY/word-bu) is a lower-case letter/digit/symbol in alphabet/character-set x₂ representing x₃.
to'a zei lerfu: x₁ (la'e zo BY/word-bu) is a lower-case letter/digit/symbol in alphabet/character-set x₂ representing x₃.
xanle'u: l₁ (la'e zo BY/word-bu) is a hand sign in character-set of sign language/system of manual communicationl₂ representing l₃ performed by hand(s) x₁.
xanle'ule'u: xl₁ (la'e zo BY/word-bu) is a fingerspelling sign in character-set of sign language/system of manual communication xl₂ representing letter/digit/symbol xl₃=l₁ in written alphabet/character-set xl₂ performed by hand(s) xl₄.
zi'e'a (exp!): converts a following bu-letteral into a sumti representing the musical natural note with that name.
zi'e'e (exp!): converts a following bu-letteral into a sumti representing the musical sharp note with that name.
zi'e'i (exp!): converts a following bu-letteral into a sumti representing the musical double sharp note with that name.
zi'e'o (exp!): converts a following bu-letteral into a sumti representing the musical flat note with that name.
zi'e'u (exp!): converts a following bu-letteral into a sumti representing the musical double flat note with that name.

In notes:

gerki'a: k₁ is the howl of a dog/canine of species g₂.
gerkrtciuaua: x₁ is a Chihuahua of breed/variety x₂.
gerkrxaski: x₁ is a husky of breed/variety x₂
gerkuuono: x₁ is a dhole (Cuon alpinus) of subspecies/breed x₂
gernciba'inu: x₁ is a shiba inu.
geryre'u: r₁ is dog meat from species/breed r₂=g₂.
katyge'u: x₁ is a hunting-dog/hound of type x₂
ko'otli: x₁ is a coyote of subspecies/breed x₂.
labno: x₁ is a wolf/lupine of species/breed x₂.
labnyge'u: x1 is a wolfdog of species/breed x2
litkauo: x₁ is an African wild dog (Lycaon pictus) of species/breed x₂
lo'o'o (exp!): plural logic maximum-scope descriptor: those who individually or collectively are ...
lorxu: x₁ is a fox [bushy-tailed wild dog/canine] of species/breed x₂.
mlatu: x₁ is a cat/[puss/pussy/kitten] [feline animal] of species/breed x₂; (adjective:) x₁ is feline.
nikyge'u: g₁=n₁ is an exaggerated creature/character (such as a dog made of nickel) of origin g₂
prokioni: x₁ is a racoon of species/breed x₂.
sifnaptera: x₁ is a flea of species x₂.
sijge'u: g₁ is a sled dog of breed/variety g₂ supporting s₃
speci: x₁ is an x₂ of species/cultivar/breed/taxon x₃.
tcakali: x₁ is a jackal of species/breed x₂.
tciuaua: x₁ is a Chihuahua of breed/variety x₂.
xa'afcmo: x₁ barks with sound x₂
xa'aucmo: x₁ howls (dog/wolf cry) with sound x₂
xafxafa: x₁ is a bow-wow, doggie, a home kept barking animal of species x₂