bubble; foam; froth; head on beer
laboratory; seminar room; professor's office
to abandon; to fail; to desert; to forsake
blocking (e.g. the way); obstructing; block (lump of something (usu. square), area of town, etc.); block; physical record (e.g. on magnetic tape); concrete block; blocking (from view, esp. of websites, on social media, etc.)
transmission of electricity; electricity supply; power supply
equipment; facilities; installation; accommodations; conveniences; arrangements
supervision; management; supervisor; manager
cutting; severance; section; amputation; disconnection
reserve; spare; preparation; preliminaries
system; lineage; ancestry; group (e.g. of colors) (colours); family (e.g. of languages); close (evolutionary) relationship
exchange; conversion; replacement; switching (to); switchover
sailing; marching; going out; dispatch
escape; flight; running away; elopement; fleeing
to take (someone) with one; to bring along; to go with; to be accompanied by
automatic pilot; autopilot; automatic control
piece of junk; worn-out article; clumsy; useless; dismantled car; hitting (with fist)
slip; omission; upshot; denouement; punch line (of a joke)
(stand to) attention!; standing at attention
radio (communication); wireless; not using wires
going down; fall; knocking down (in boxing); flooring; being out of action (due to illness, exhaustion, etc.); being down (e.g. with a cold); going down (of a computer system, server, etc.)
to be fit (for a role); to be qualified (for); to be equal (to a task); to be able to fulfill one's duties (as)
to be flustered; to lose one's presence of mind
fear; horror; anxiety; concern; uneasiness; reverence
fear; dread; dismay; terror; horror; scare
to dwell; to live; to stay at; to take shelter at; to be pregnant; to be part of a constellation
expression; look; countenance; face
number one; first; best; most; game; round
to take someone's life; to kill someone
moment; instant; kshana; duration of a single mental event (about 1/75 second); shortest possible interval of time
begging for one's life; pleading for one's life
murder; killing; murderer
hair; fur; wool; down; plumage
first floor; ground floor; one floor; one storey; one rank
inclination; slant; slope; bevel; list; dip
elevator; lift; elevator (aviation)
boarding gate (airport); aircraft door
figure of a person; figures of people; shadow of a person
arrest; apprehension; capture
securing; obtaining; ensuring; belay; belaying
to do one's best; to put forth every effort
confidence; trust; faith; credit (finance)