data unavailability; lack of data; shortage of data
conditional search; filtering
diagonal cross; x-shaped cross
privacy of communications
blunt; to the point; direct; outspoken; frank
absolute coordinate; absolute address
transmission protocol; communication protocol
allowable error; allowable limit of error
standard; standard specification
initial budget; original budget
to bring into the open; to reveal; to uncover (e.g. evidence); to bring to light
starship; interstellar spacecraft
collecting bodies (of casualties, etc.); recovering bodies
relevant source; well-informed source; interested parties
Lagrangian point; Lagrange point
anniversary of the end of a war
personal digital assistant; PDA