LATIN PREFIX 4
4. BI-(two), SEMI-(half, partly)
bicameral consisting of two chambers or legislative houses
bicentennial two hundredth anniversary
biennial occurring every two years
semiannual occurring every half year, or twice a year; semiyearly
bimonthly occurring twice a month
semimonthly occurring every half month, or twice a month
bilateral having two sides
bilingual 1. speaking two languages equally well
2. written in two languages
bipartisan representing two political parties
bisect divide into two equal parts
semicircle half of a circle
semiconscious half conscious; not fully conscious
semidetached partly detached; sharing a wall with an adjoining building on one side, but detached on the other
semiskilled partly skilled