Verb (5-dan, す, transitive)
1.  to shut;  to close;  to fasten;  to lock
2.  to block (a street, entrance, etc.)
when read as "とざす"
3.  to shut in (with snow, ice, etc.);  to shut off;  to cut off;  to cover (e.g. in darkness)
usu. in the passive
when read as "とざす"
4.  to consume (with negative feelings);  to fill (e.g. with sadness);  to bury (e.g. in grief)
usu. in the passive
when read as "とざす"