materials; ingredients

material (for a novel, experiment, etc.); subject matter

grounds (for a decision, judgement, etc.); basis; evidence; data

Finance

(market) factor

ingredient; (raw) material; resource

unprocessed timber; raw timber

subject matter; topic

foodstuff; ingredient

gathering material (for an article, novel, etc.); collecting information; covering (an event, incident, etc.); reporting; interview (for a news story)

capable person; talented person

human resources; personnel

machinery and materials; equipment

materials for manufacturing machinery

lumber; timber; wood

(raw) material

subject; theme

material

material properties; quality of material

quality of wood; quality of lumber