stress

[1]	emphasize , accent , accentuate , lay stress/emphasis on , underscore , underline , mark , note , make a point of , bring home , focus on , bring into prominence , spotlight , feature , highlight
[2]	strain , put under strain/stress , upset , disturb , burden , worry , distress , (Brit) pressurize/(US) pressure
[3]	emphasize , emphasise , punctuate , accent , accentuate
[4]	accent , accentuate
[5]	try , strain

[1]	emphasis , emphasis , force , accent , pressure , forcefulness , accent , accentuation , prominence , (Technical) ictus
[2]	emphasis , tension , tenseness , significance , importance , weight , force , insistence , urgency
[3]	(stress and) strain , focus , burden , anxiety , worry , distress , pain , grief , suffering , anguish , pressure , tenseness , tension
[4]	strain