ph.
cause something, typically something unpleasant, to occur
Oxford Dictionary
ph.
encourage someone who is learning something to develop or improve
Oxford Dictionary
ph.
used to express confidence in meeting a challenge
Oxford American Dictionary
ph.
cause something, typically something unpleasant, to occur or develop
Oxford American Dictionary
ph.
encourage someone who is learning something to develop or improve at a faster rate
Oxford American Dictionary
ph.
used to express confidence in meeting a challenge
Oxford Dictionary
Oxford Dictionary
Oxford American Dictionary