Verb

(undermin)

To dig underneath (something), to make a passage or for destructive or military purposes; to sap.

* 2009 , (Diarmaid MacCulloch), A History of Christianity , Penguin 2010, p. 312:

Martin, for instance, had on one occasion undermined a tree sacred to old gods, then stood in the path of its fall, but forced it to fall elsewhere by making the sign of the Cross.

(figuratively) To weaken or work against; to hinder, sabotage.

* {{quote-news, year=2012, date=April 19, author=Josh Halliday, work=the Guardian

, title= Free speech haven or lawless cesspool – can the internet be civilised? , passage=The growing use of social media to spread anger and dissent in the Arab world has been hailed by western governments as one of the chief justifications for a completely unfettered internet. The US is reportedly funding the secret rollout of technology in Iran in an effort to undermine internet censors in the country.}}

Verb

(en verb)

To look down upon from a place that is over or above; to look over or view from a higher position; to rise above, so as to command a view of

to overlook a valley from a hill

Hence: To supervise; to watch over; sometimes, to observe secretly

to overlook a gang of laborers; to overlook one who is writing a letter

To inspect; to examine; to look over carefully or repeatedly.

To look upon with an evil eye; to bewitch by looking upon; to fascinate.

To fail to notice; to look over and beyond (anything) without seeing it; to miss or omit in looking.

To pretend not to have noticed, especially a mistake; to pass over without censure or punishment.