1. focal point, focus

a point of convergence of light (or other radiation) or a point from which it diverges

Synonyms

• focus

2. focal point, focus, nidus

a central point or locus of an infection in an organism

Example Sentences:
'the focus of infection'

Synonyms

• focus
• nidus

3. centering, direction, focal point, focus, focusing, focussing

the concentration of attention or energy on something

Example Sentences:
'the focus of activity shifted to molecular biology'
'he had no direction in his life'

Synonyms

• centering
• direction
• focus
• focusing
• focussing