s, a, e, f, g, l, n, t, i, u are letters that make 'self-sustaining'
el, LF, ELF, ng, SE, EL, Sus, ain, self, Tai, in, stain, staining, AI, ai, US, IN, elf, In, Ni, Se, Ta, sustain are words within 'self-sustaining'
1 possible definitions for 'self-sustaining'
Under this definition, self-sustaining is an adjective and has the following properties:
self-sufficient, self-sufficing have the same meaning as 'self-sustaining'
autonomy, self-direction, self-reliance, self-sufficiency are derivatives of 'self-sustaining'.
independent is similar to self-sustaining.