element
noun
1 village shops are an essential element of the local community:
component, constituent, part, section, portion, piece, segment, bit;
factor, feature, facet, ingredient, strand, detail, point;
member, unit, module, item;
essential;
rare integrand.
2 there is an element of truth in this stereotype:
trace, touch, hint, smattering, suspicion, soupçon.
3 (elements) it is assumed that the reader is familiar with the elements of thermodynamics:
basics, essentials, principles, first principles;
foundations, fundamentals, rudiments;
informal nuts and bolts, ABC.