(school) recital; school concert; class presentation; presentation (for a new product, etc.); announcement event; launch event
water heater; (domestic) boiler
entirely useless; completely worthless; no no; don't!
stopping at; going no further than
by means of; due to; because of; according to
extreme; terrible; absurd; unreasonable; fool; idiot
kernel; core; nucleus; center; centre
manuscript; copy; draft; notes; contribution
to arrange (flowers); to plant
contribution (e.g. to newspaper)