Effective vaccines often aim to enhance co-stimulation to ensure robust T cell responses.

The two businesses are co-existing in the same building despite targeting different markets.

Several species of plants co-existed in the harsh desert environment.

A fragile peace co-exists with deep resentment in the region.

Successful international research depends on co-operation between scientists and funding agencies.

The researcher published a paper on the co-evolution of humans and gut microbiota.

The grassroots movement was co-opted by mainstream politicians before it could enact real change.

The activist warned that corporate marketing was co-opting community protests to sell products.

The committee co-opts smaller activist groups to neutralize their criticism.

The detective questioned the alleged co-conspirator for hours, hoping to uncover the mastermind behind the plot.