On gloss:

zdile
x1 (abstract) is amusing/entertaining to x2 in property/aspect x3; x3 is what amuses x2 about x1.
u'i
attitudinal: amusement - weariness.
selzdi
x1 is amused with x2 due to amusing property x3.
zumyzdi in sense "activity"
zu1=zd1 is an amusement/diversion pursued by zd2, enjoyable for reason zd3.

In definition:

u'inai (comp!)
attitudinal: amusement - weariness.
zdicaudri
z2=c1=b1 is bored, lacking amusement c2=z1.
zdigau
x1=g1 entertains (agentive) x3=z2 with x2=z1; g1 makes z1 entertaining/amusing for z2 in property/aspect z3
zdilisri
l1=z1 is an anecdote/funny story/joke about plot/subject/moral l2 by storyteller l1 to audience l4=z2, amusing in aspect x5=z3.
zdimi'a
x1=c1=z2 laughs about x2=z1 (abstract) in property/aspect x3=z3; x1=c1=z2 is amused about x2=z1 (abstract) amusing in property/aspect x3=z3 which causes x1=c1=z2 to laugh.
zdipanka
p1 is a park managed by polity/community p2 for use by z2, with amenities/amusements z1.
besto
x1 dons metaphorical asbestos suit x2 to guard against flames x3 on topic x4 from x5, who disagrees with post x6 for reason x7, not realizing that the post was meant to be sent to x8 rather than all of mailing list x9 (default jboste) where it was posted in response to email x10, whose author wishes selma'o x11 (default SE) were extended to concisely express place x12 of brivla x13 (default besto) which has place structure x14 and too many places because of sadistic whim x15 of brivla-maker x16, who also created brivla x17 which has place structure x18, and so winds up using too many of cmavo x19 (default zi'o) in order to make the brivla ( x13) more usable by standard x20 and wishes they had never heard of the word besto for reason x21, not realizing for reason x22 that it was suggested sarcastically due to boredom x23 of person x24, who is proposing it against better judgement x25 because it is fun by standard x26, but still wishes it had as many places as x27 (default du) for reason x28, and feels like throwing in epistemology sumti x29, because he/she knows both that gismu x30 (default besto) has its place structure defined by run-on sentence x31 and that epistemology sumti are used in gismu x32 by epistemology x33, notwithstanding the fact that x34 actually has a use for besto places x35 (default 1) through x36 (default x7) and wishes this weren't an extremely long and stupid joke, longer than joke x37 and stupider than joke x38 but still appreciated by x39 - a fact which says x40 about them in the opinion of x41 - but not seen as even remotely amusing by x42, who is aware that x43 has a use for the gismu besto because of x45
u'inmo
x1 is amused by x2 / finds x2 funny.