x_{1} [concept] exists in the imagination of/is imagined by/is imaginary to x_{2}.

Also (adjective:) x_{1} is mental (one sense), x_{1} is unreal (one sense); in spite of the synonym, note that x_{1} is imaginary does not imply that it doesn't exist in the real world; the definition is crafted so that one can talk about imaginary things without claiming that they thereby don't exist.
See also fatci, senva, sucta, zasti, cfika, dacti, menli, sidbo.

- cfika
- x
_{1}is a work of fiction about plot/theme/subject x_{2}/under convention x_{2}by author x_{3}. - dacti
- x
_{1}is a material object enduring in space-time; x_{1}is a thing. - fatci
- x
_{1}(du'u) is a fact/reality/truth/actuality, in the absolute. - menli
- x
_{1}is a mind/intellect/psyche/mentality/[consciousness] of body x_{2}. - senva
- x
_{1}dreams about/that x_{2}(fact/idea/event/state); x_{2}is a dream/reverie of x_{1}. - sidbo
- x
_{1}(idea abstract) is an idea/concept/thought about x_{2}(object/abstract) by thinker x_{3}. - sucta
- x
_{1}(si'o) is abstracted/generalized/idealized from x_{2}[something concrete] by rules x_{3}. - zasti
- x
_{1}exists/is real/actual/reality for x_{2}under metaphysics x_{3}. - basxarfri
- x
_{1}vicariously experiences x_{2}(ka/nu/li'i), imagining themself in place of x_{3} - cumselpei
- x
_{1}=p_{2}=c_{1}(subject/concept) is conceivable under conditions c_{2}. - nunsne
- n
_{1}is dreaming/fantasy by s_{1}dreaming of/fantasizing about s_{2} - selxanri
- xa
_{2}imagines xa_{1}. - selxarkei
- k
_{1}=x_{2}pretends x_{1}(concept) - tolxarna'u
- x
_{1}is a real number. - xarpei
- p
_{1 }= x_{2}imagines / visualizes imaginary subject / concept p_{2 }= x_{1}. - xarpe'o
- x
_{1}is an imaginary friend of x_{2}. - xarpresmitra
- x
_{1}=t_{1}=s_{1}acts like/pretends to be fictional/imaginary character x_{2}=t_{2}=s_{2}=xa_{1}=p_{1}imaginary to x_{3}=xa_{2}, in property/way x_{4}=s_{3}under conditions x_{5}=t_{3}. - kei'au
- mekso operator: finite result set derived from/on set A with/due to operator/function B under ordering of application C
- mu'ai
*(exp!)* - munje modal: 1st place; in universe...
- xa'i
*(exp!)* - discursive: imagining/roleplaying - not imagining/"out of character / in real life"
- da'inri
- x
_{1}(si'o/du'u/nu) is hypothetical / is assumed for the sake of analysis by x_{2} - fantasi
- x
_{1}(entity) is fantastical, exhibiting x_{2}(property of x_{1}), which is relevant to magic, myths or fictive medieval technology and thus extraordinary - intele
- x
_{1}is an intellect of bearer x_{2}