I live in a 3 story town house where the common living areas (living room and kitchen) are on the 2nd floor. There are certain random areas on the 2nd floor that tend to squeak when you walk over them… coincidentally areas that have higher foot traffic.

Does anyone know any methods or ways to address this problem without having to tear up and/or replace the wood floors??

Sprinkle lock lubricant or powdered graphite into the joints between the floorboards. Then place a cloth over the boards and walk back and forth to work the powdery lubricant down into the cracks. This will reduce wood-on-wood friction between the planks and silence small squeaks. Finish by using a damp cloth to remove any remaining powder from the floor.

https://www.popularmechanics.com/home/interior-projects/how-to/g1546/7-ways-to-silence-your-squeaky-floor/?utm_source=google&utm_medium=cpc&utm_campaign=mgu_ga_pop_ext_comm_org_us_how-to&gad_source=1&gbraid=0AAAAADCyiSkE_bkUPexmKmDrFnyTTmrCu&gclid=Cj0KCQiA_Yq-BhC9ARIsAA6fbAjnXgQUN2sSXDaaOw2PIz-dQcWQKXs57qQoMTKl9ej4R1I88GfdTq0aAjd4EALw_wcB