vanbi -vab- gismu

x1 (ind./mass) is part of an environment/surroundings/context/ambience of x2.

(adjective:) x1 is ambient. See also cmavo list va'o, sruri, jibni, jbini, ferti, tcini.

In definition:

va'o
vanbi modal, 1st place (conditions 1) under conditions ...; in environment ...
seva'o (comp!)
vanbi modal, 2nd place (environment) as conditions/environment of/for ...

In notes:

ferti
x1 is fertile/conducive for supporting the growth/development of x2; x1 is fruitful/prolific.
jbini
x1 is between/among set of points/bounds/limits x2 (set)/amidst mass x2 in property x3 (ka).
jibni
x1 is near/close to/approximates x2 in property/quantity x3 (ka/ni).
sruri
x1 encircles/encloses/is surrounding x2 in direction(s)/dimension(s)/plane x3.
tcini
x1 [state/property] is a situation/condition/state/position/are conditions/circumstances of x2.
kosmyka'u
x1 (abstraction) is a use-case / expected usage scenario of x2 (object/event)
smuvanbi
v1 is the context of meaning v2=s1 of event/action/object s2 recognized by s3.
ta'avru
x1 is talking noise / background chatter to x2 observed via senses x3 of x4 talking to x5 about x6 in language x7.