attend

1 ENTRIES FOUND:
attend /əˈtɛnd/ verb
attends; attended; attending
attend
/əˈtɛnd/
verb
attends; attended; attending
Britannica Dictionary definition of ATTEND
1 
a  : to go to and be present at (an event, meeting, etc.)
[+ object]
[no object]
b  [+ object] : to regularly go to (classes, church services, etc.)
2 
[+ object]
a  : to help or care for (someone, such as a patient)
b  : to assist with (a birth) — see also attending
3 
[+ object] formal : to go with or be with (someone) as a helper or adviser

attend to

[phrasal verb]
1 
attend to (someone or something)
: to deal with (something)
2 
: to give needed help or attention to (someone or something)