upon
Concise Oxford English Dictionary © 2008 Oxford University Press:
upon/əˈpɒn/
▶preposition more formal term for on.
'upon' also found in these Oxford entries:
administer
- aliyah
- animadvert
- anoint
- appoggiatura
- assail
- bear
- begin
- bell
- bless
- bread
- bring
- burton
- call
- catalepsy
- chance
- check
- circumjacent
- classical
- coincide
- come
- concordat
- condition
- conjure
- constructionist
- contest
- contingent
- converge
- count
- cully
- design
- detest
- devolve
- devote
- dote
- dwell
- elastic modulus
- embark
- encroach
- energetic
- energumen
- enlarge
- enter
- epi-
- epidermis
- epididymis
- epigene
- epiglottis
- epigram
- epiphora

