tension

[1]	stress , tenseness , stress , tightness , tautness , strain , pull , traction , pressure , tenseness , force
[2]	nervousness , tensity , tenseness , anxiety , anxiousness , tautness , strain , edginess , apprehension , suspense , tautness , distress , upset , worry , jumpiness , fidgetiness , (Colloq) jitteriness , (a case of) the jitters
[3]	latent hostility