(biochemistry) a plant or other organism which accomplishes nitrogen fixation

(US, informal) A house, property, car, or other object that needs to be fixed up or repaired, often purchased as an investment.

Agent noun of fix; one who, or that which, fixes. / (photography) A chemical (sodium thiosulfate) used in photographic development that fixes the image in place, preventing further chemical reactions.

In a fixed manner: steadily, without shifting one's gaze. / In a fixed manner: unchangingly, without changing one's expression. / Firmly, resolutely.